This cheesy chicken broccoli casserole is pure comfort in a baking dish. On busy weeknights I reach for leftover roasted chicken, fresh broccoli, and a couple of pantry staples. Everything mixes in one bowl, tops with extra cheddar, and bakes until the cheese bubbles and stretches. The creamy sauce clings to every floret and shred of chicken. It feels special yet takes almost no effort, which is exactly why it lands on our table so often.
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Why you’ll love this recipe
This bake delivers big flavor with almost no hands-on time.
- Ready in under an hour from start to finish
- Uses simple pantry and fridge staples
- Extra cheesy top that stretches with every scoop
- Perfect for leftover chicken or meal prep nights
Ingredients
Gather these everyday items for a creamy, cheesy casserole the whole family will request again.
- 3 cups cooked shredded chicken
- 4 cups broccoli florets
- 1 can (10.5 oz) cream of chicken soup
- 1 cup sour cream
- 2 cups shredded cheddar cheese, divided
- ½ tsp garlic powder
- ½ tsp black pepper
- ¼ tsp salt
Rotisserie chicken works perfectly and saves time. Frozen broccoli can replace fresh if thawed and drained well. Swap sour cream for plain Greek yogurt for a lighter version, or use sharp cheddar for deeper flavor. Cream of mushroom soup is a solid stand-in if that is what you have on hand.
Worth trying next: Crispy Cornflake-Crusted Egg and Cheese
Step-by-step instructions
Follow these simple steps for a bubbling, golden casserole every single time.
Step 1: Prep the broccoli
Wash the broccoli and cut into even medium florets. Pat them dry so excess water does not thin the sauce later.
Step 2: Shred the chicken
Pull cooked chicken into bite-sized shreds and place them in a large mixing bowl. Measure about three cups for the right ratio.
Step 3: Combine the base
Add the broccoli florets to the chicken. Pour in the cream of chicken soup and the full cup of sour cream.
Step 4: Season the mixture
Sprinkle garlic powder, black pepper, and salt over the bowl. Stir gently until everything is evenly coated in the creamy sauce.
Step 5: Fold in cheese
Add one and a half cups of the shredded cheddar. Mix just until the cheese is distributed throughout the chicken and broccoli.
Step 6: Transfer to dish
Spoon the mixture into a lightly greased 9×13-inch baking dish. Spread it into an even layer with a spatula.
Step 7: Top with remaining cheese
Scatter the last half cup of cheddar evenly over the surface. This creates the golden, stretchy top layer.
Step 8: Bake until bubbly
Bake at 375°F for 25 to 30 minutes until the edges bubble and the cheese turns golden. Let it rest five minutes before serving.
Tips & common mistakes
A few small habits keep this casserole creamy and never watery.
- Drain broccoli thoroughly if using frozen florets
- Do not overmix once the cheese is added
- Use freshly shredded cheddar for better melt
- Rest the bake five minutes before scooping
Easy Cheesy Chicken Broccoli Casserole
Equipment
- 1 Large mixing bowl
- 1 | 9×13-inch baking dish | greased
- 1 | Wooden spoon or spatula |
- 1 | Knife | for cutting broccoli
- 1 | cutting board |
Ingredients
- 3 | cups | cooked shredded chicken |
- 4 | cups | broccoli florets | fresh or thawed frozen
- 1 | can 10.5 oz | cream of chicken soup |
- 1 | cup | sour cream |
- 2 | cups | shredded cheddar cheese | divided
- ½ | tsp | garlic powder |
- ½ | tsp | black pepper |
- ¼ | tsp | salt |
Instructions
- Preheat oven to 375°F and lightly grease a 9×13-inch baking dish.
- Cut broccoli into even florets and place in a large mixing bowl.
- Add shredded chicken to the broccoli.
- Stir in cream of chicken soup, sour cream, garlic powder, pepper, and salt.
- Fold in 1½ cups of the shredded cheddar until evenly distributed.
- Transfer mixture to the prepared baking dish and spread evenly.
- Sprinkle remaining ½ cup cheddar over the top.
- Bake 25–30 minutes until bubbly and golden. Rest 5 minutes before serving.
Notes
Reheat covered in a 350°F oven or microwave with a splash of milk.
Rotisserie chicken works perfectly and saves prep time.
Frozen broccoli is fine if thoroughly drained.
Recipe variations
Simple swaps keep this dish exciting for different preferences and seasons.
- Add cooked rice or pasta for a heartier version
- Stir in diced ham or cooked bacon pieces
- Use cream of mushroom soup for earthy flavor
- Top with crushed crackers for extra crunch
What to serve with this recipe
These easy sides balance the rich, creamy casserole perfectly.
- Simple green salad with light vinaigrette
- Garlic bread or soft dinner rolls
- Steamed rice or buttered egg noodles
- Roasted carrots or green beans on the side
Another reader favorite: Loaded Cheesy Beef Fries
Frequently asked questions
Here are quick answers to the questions readers ask most often about this bake.
Can I make this casserole ahead of time?
Yes. Assemble everything, cover, and refrigerate up to 24 hours. Add five extra minutes to the bake time when cooking from cold.
Can I freeze leftovers?
Absolutely. Cool completely, portion into airtight containers, and freeze up to three months. Thaw overnight in the fridge before reheating.
What if I do not have cream of chicken soup?
Cream of mushroom or cream of celery soup works well. The flavor shifts slightly but stays creamy and comforting.
How do I reheat without drying it out?
Cover with foil and warm at 350°F until heated through. A splash of milk or broth restores the sauce if needed.
Final thoughts
This cheesy chicken broccoli casserole has become one of those reliable weeknight heroes in my kitchen. It uses what most of us already have, tastes like pure comfort, and leaves almost no dishes behind. I hope it earns a regular spot on your table too. If you try it, leave a five-star rating and tell me in the comments how it turned out or what variation you loved most. Happy cooking!