Baked Potato Chicken & Broccoli Casserole

There’s something magical about a dish that combines tender chicken, fluffy potatoes, and vibrant broccoli all baked together in a creamy, cheesy sauce. This Baked Potato Chicken & Broccoli Casserole is the ultimate comfort food that brings the whole family to the table. It’s hearty enough to satisfy the biggest appetites, yet simple enough to prepare on a busy weeknight.
Whether you’re looking for a complete meal that requires to bring to a potluck, this casserole delivers on every front. The combination of flavors and textures creates a symphony in your mouth—creamy sauce, melted cheese, crispy topping, and perfectly seasoned vegetables all working together in harmony.
Prep time: 20 minutes
Cook time: 35 minutes
Total time: 55 minutes
Yield: 6 generous servings
Table of Contents
Why You’ll Love This Casserole
This isn’t just another casserole recipe—it’s a game-changer for your dinner routine. The beauty of this dish lies in its versatility and convenience. You can use leftover rotisserie chicken origo 300 the ingredients ahead of time, making it an excellent option for meal planning. The casserole reheats beautifully, so you can enjoy delicious leftovers for days.
The creamy base, made with sour cream and cream of chicken soup, coats every ingredient with rich, savory goodness. The combination of cheddar and mozzarella creates that irresistible cheese pull we all crave, while the buttery breadcrumb topping adds a satisfying crunch that contrasts perfectly with the tender vegetables and meat underneath.
Parents love this recipe because it sneaks vegetables into a format that even picky eaters enjoy. The broccoli becomes tender and mild when baked in the creamy sauce, losing any bitterness that sometimes turns kids away from green vegetables. Meanwhile, adults appreciate the sophisticated blend of flavors and the fact that it’s a complete meal in one dish.
Ingredients You’ll Need
Main Components
- 3 cups cooked chicken, shredded or diced – Rotisserie chicken works perfectly here and saves time. You can also use leftover grilled chicken, baked chicken breasts, or even poached chicken thighs for extra juiciness.
- 3 cups potatoes, cubed and boiled until tender – Russet potatoes work best due to their fluffy texture, but Yukon Gold potatoes add a buttery flavor. Cut them into ½-inch cubes for even cooking.
- 2 cups fresh or frozen broccoli florets – Fresh broccoli offers the best texture, but frozen works wonderfully when you’re short on time. No# Baked Potato Chicken & Broccoli Casserole
Imagine coming home after a long day to the aroma of melted cheese, tender chicken, and perfectly seasoned vegetables wafting through your kitchen. That’s exactly what awaits you with this Baked Potato Chicken & Broccoli Casserole—a dish that transforms simple ingredients into pure comfort food magic. This recipe combines the heartiness of loaded baked potatoes with the protein-packed goodness of chicken and the nutritional benefits of broccoli, all held together by a lusciously creamy sauce and topped with a golden, crispy layer that’ll have everyone reaching for seconds.
Whether you’re feeding a hungry family on a busy weeknight, preparing a potluck contribution that’ll steal the show, or simply craving the kind of meal that wraps you in a warm hug, this casserole delivers on every level. It’s the kind of recipe that makes meal planning effortless—you can prep components ahead, customize ingredients based on what’s in your fridge, and even freeze portions for future dinners. Best of all, everything bakes together in one dish, which means minimal cleanup and maximum flavor.
Prep time: 20 minutes
Cook time: 35 minutes
Total time: 55 minutes
Yield: 6 generous servings
Why This Casserole Works
This isn’t just another casserole recipe thrown together—it’s a carefully balanced combination that hits all the right notes. The potatoes provide satisfying substance and absorb the creamy sauce beautifully, while the chicken adds lean protein that keeps the dish hearty without feeling heavy. Broccoli brings a fresh, slightly crisp element that cuts through the richness, plus it sneaks in those essential vegetables that make this a more complete meal.
The sauce is where the magic happens. By combining sour cream with cream of chicken soup, you get a base that’s both tangy and savory, with a consistency that coats every ingredient perfectly. The double cheese layer—cheddar for its sharp flavor and mozzarella for that irresistible stretch—creates pockets of melted goodness throughout the casserole. And that buttered breadcrumb topping? It transforms from simple pantry staples into a golden, crunchy crown that provides the perfect textural contrast to the creamy interior.
What makes this recipe particularly brilliant is its adaptability. Got leftover rotisserie chicken? Perfect. Fresh broccoli looking a bit tired? Frozen works just as well. Need to make it ahead? Assemble everything up to the baking step and refrigerate until you’re ready. This flexibility makes it ideal for real-life cooking, where plans change and ingredients need to be flexible.
Ingredients You’ll Need
Main Components
- 3 cups cooked chicken, shredded or diced
- 3 cups potatoes, cubed and boiled until tender
- 2 cups fresh or frozen broccoli florets
- 1 cup sour cream
- 1 can (10.5 oz) cream of chicken soup
- 1 ½ cups shredded cheddar cheese
- ½ cup mozzarella cheese
Seasonings
- ½ tsp garlic powder
- ½ tsp onion powder
- Salt and pepper to taste
Topping
- ½ cup breadcrumbs
- 2 tbsp butter, melted
Ingredient Tips and Substitutions
The beauty of this casserole lies in its versatility. For the chicken, rotisserie chicken is your weeknight hero—it’s already seasoned and ready to go. Alternatively, poach chicken breasts in seasoned water for about 15 minutes, or use leftover grilled or baked chicken. Even turkey works wonderfully if you’re cooking after Thanksgiving.
When it comes to potatoes, Yukon Gold offers the best creamy texture and buttery flavor, but russets work perfectly fine and are often more budget-friendly. The key is cutting them into uniform ¾-inch cubes so they cook evenly. Boil them in salted water until fork-tender but not mushy—about 10-12 minutes. You want them to hold their shape during baking.

For the broccoli, both fresh and frozen work equally well. If using fresh, cut florets into bite-sized pieces to ensure they cook through. Frozen broccoli is incredibly convenient—just make sure to thaw and drain it well so you don’t add excess moisture to your casserole. You can even substitute cauliflower, green beans, or a mixed vegetable blend if that’s what you have on hand.
The sour cream and cream of chicken soup create that signature creamy texture, but feel free to experiment. Greek yogurt can replace sour cream for a protein boost and tangier flavor. If you’re looking to lighten things up, use light sour cream or reduced-fat soup without sacrificing too much richness. For a homemade touch, you can make your own cream soup base with butter, flour, chicken broth, and milk.
Cheese choice matters here. Sharp cheddar provides that classic bold flavor, while mozzarella adds stretch and mild creaminess. Don’t skip the mozzarella—it’s what gives you those gorgeous cheese pulls. You can also try Monterey Jack, Colby, or even a smoked Gouda for different flavor profiles. Pre-shredded cheese is convenient, but freshly grated melts more smoothly since it doesn’t contain anti-caking agents.
The breadcrumb topping elevates this from simple casserole to restaurant-quality dish. Panko breadcrumbs create an extra-crispy texture, but regular breadcrumbs work fine. For a gluten-free version, use crushed gluten-free crackers or cornflakes. Some cooks even crush up butter crackers for an indulgent twist.
Step-by-Step Instructions
Step 1: Prepare Your Oven and Dish
Preheat your oven to 375°F (190°C). This temperature is the sweet spot for casseroles—hot enough to create that golden top and bubbly edges, but gentle enough to heat everything through without drying out the chicken or overcooking the vegetables. Lightly grease a 9×13-inch baking dish with butter or cooking spray. A glass or ceramic dish works beautifully for even heat distribution, but metal pans work too and often create slightly crispier edges.
Step 2: Create the Creamy Base
In a large mixing bowl, combine the sour cream and cream of chicken soup. Whisk these together until smooth and well-blended—this ensures your sauce will coat everything evenly without lumps. Add the garlic powder, onion powder, salt, and pepper. Don’t be shy with the seasoning here; casseroles need bold flavors since they’re feeding a crowd. Taste the mixture and adjust as needed. Remember, the potatoes will absorb some of this seasoning, so season confidently.
Step 3: Combine the Main Ingredients
Add your cooked chicken, boiled potato cubes, and broccoli florets to the bowl with your creamy sauce. Sprinkle in 1 cup of the shredded cheddar cheese, saving the remaining cheese for topping. Using a large spoon or spatula, gently fold everything together until each piece is coated with that creamy mixture. Be gentle with the potatoes—you want them coated, not mashed. The goal is to see visible pieces of chicken, potato, and broccoli all bound together by the sauce, with melted cheese pockets throughout.
Step 4: Transfer to Baking Dish
Pour the mixture into your prepared baking dish, spreading it evenly with a spatula. Make sure the ingredients are distributed uniformly so every portion has a good balance of chicken, potatoes, and broccoli. Smooth the top slightly to create an even surface—this helps the cheese and breadcrumbs brown uniformly.
Step 5: Add the Cheese and Breadcrumb Topping
Sprinkle the remaining ½ cup of cheddar cheese and the ½ cup of mozzarella cheese evenly over the top of the casserole. In a small bowl, toss the breadcrumbs with the melted butter until the crumbs are evenly coated and slightly clumpy. Sprinkle this mixture over the cheese layer, creating a textured topping that will turn golden and crispy in the oven.
Step 6: Bake to Golden Perfection
Place the casserole in your preheated oven and bake for 30-35 minutes. You’ll know it’s ready when the edges are bubbling enthusiastically, the top is golden brown, and the cheese has melted into gooey perfection. If you want an extra-crispy top, turn on the broiler for the last 2-3 minutes—but watch it carefully to prevent burning.
Step 7: Rest and Serve
Remove the casserole from the oven and let it rest for 5-10 minutes before serving. This resting time is crucial—it allows the sauce to thicken slightly and makes serving much neater. Cutting into it immediately will result in a soupy consistency, while waiting gives you those perfect, Instagram-worthy portions.
Pro Tips for Casserole Success
Transform this good casserole into a great one with these expert tips. First, don’t overcook your potatoes during the boiling stage. They’ll continue cooking in the oven, so slightly underdone potatoes will have the perfect texture in the final dish, while overcooked potatoes turn to mush.
Season in layers for maximum flavor. Season the chicken mixture well, but also consider seasoning your potatoes while they’re boiling and adding a pinch of salt to your breadcrumb topping. This creates depth of flavor that a single seasoning moment can’t achieve.
For extra richness, add a handful of crumbled bacon between the casserole layer and the cheese topping. The bacon adds smoky, salty pops of flavor that complement the creamy base beautifully. You can also drizzle ranch dressing or a garlic aioli over individual servings for an extra layer of indulgence.
Make-ahead convenience is one of this recipe’s biggest advantages. Assemble the entire casserole up to 24 hours in advance, cover tightly with plastic wrap and foil, and refrigerate. When ready to bake, add an extra 10-15 minutes to the cooking time since you’re starting from cold. You can even freeze the unbaked casserole for up to three months—just thaw in the refrigerator overnight before baking.
Leftovers store beautifully. Keep them covered in the refrigerator for up to four days. Reheat individual portions in the microwave, or warm the whole dish in a 350°F oven for about 20 minutes. The casserole often tastes even better the next day as the flavors have more time to meld together.

Customization Ideas
This recipe is a canvas for your creativity. For a lighter version, substitute Greek yogurt for sour cream, use low-fat soup and cheese, and replace the butter in the topping with olive oil spray. You’ll cut calories while maintaining that comfort food appeal.
Going keto or low-carb? Swap the potatoes for cauliflower florets and use crushed pork rinds instead of breadcrumbs. The result is still creamy, cheesy, and satisfying with a fraction of the carbs. Add extra cheese to make up for the reduction in starchy comfort.
For picky eaters or vegetable-averse family members, finely chop the broccoli or use riced broccoli so it blends more seamlessly into the dish. You can also mix in other vegetables like bell peppers, corn, or peas without changing the fundamental recipe.
Spice lovers can add diced jalapeños, a dash of cayenne pepper, or use pepper jack cheese instead of regular cheddar. Buffalo chicken casserole fans can toss the chicken in buffalo sauce before adding it to the mix and top with a blue cheese drizzle.
This casserole reheats so well that it’s perfect for meal prep. Divide it into individual containers for grab-and-go lunches throughout the week. It’s the kind of meal that actually improves your busy weekdays because you’ve done the work once and can enjoy it multiple times.
Serving Suggestions
While this casserole is hearty enough to stand alone, pairing it with the right sides creates a complete, satisfying meal. A crisp green salad with vinaigrette cuts through the richness and adds freshness. Garlic bread or dinner rolls are perfect for soaking up any extra sauce. For a complete comfort meal, serve alongside roasted vegetables like carrots, Brussels sprouts, or green beans.
This dish works beautifully for different occasions. It’s casual enough for family dinners but impressive enough for potlucks and gatherings. Make it for meal prep Sunday, serve it at a holiday gathering, or bring it to a friend who needs a comforting meal. The generous six-serving size feeds a family with leftovers or provides enough for a small dinner party.
The Comfort Food You’ll Make Again and Again
There’s something special about a casserole that brings together simple ingredients into something greater than the sum of its parts. This Baked Potato Chicken & Broccoli Casserole does exactly that—it’s reliable, delicious, and adaptable. It’s the recipe you’ll turn to when you need to feed people you care about without spending hours in the kitchen.
The creamy, cheesy interior contrasts beautifully with the crispy topping. Every bite delivers protein from the chicken, satisfaction from the potatoes, nutrition from the broccoli, and pure comfort from that dreamy sauce. It’s proof that home cooking doesn’t need to be complicated to be extraordinary.
Make this casserole once, and it’ll earn a permanent spot in your rotation. It’s the kind of recipe you’ll share with friends, make for new parents, and eventually pass down to the next generation. Because the best recipes aren’t just about food—they’re about creating moments of warmth and connection around the dinner table.
