Cheesy Chicken Broccoli Bake High Protein Dinner

Food Safety Advisory: Cook chicken to an internal temperature of 165°F. Refrigerate leftovers within 2 hours and store in airtight containers. Reheat thoroughly before serving.

For official U.S. safe handling guidance, refer to: USDA Food Safety and Inspection Service .

What Is Cheesy Chicken Broccoli

Cheesy chicken broccoli is a baked casserole-style dinner made with cooked chicken, broccoli florets, and a creamy cheese mixture. The ingredients are combined in a baking dish and cooked until the cheese melts and the top becomes lightly golden.

The texture is soft and creamy inside with small pockets of broccoli and chicken throughout the dish. The cheese creates a thick layer that coats the ingredients and helps hold the bake together.

This type of dish works well for high-protein meals because chicken breast provides lean protein while the cheese adds richness and structure. Broccoli balances the dish by adding fiber and freshness. For another protein-focused chicken dinner, this high-protein garlic parmesan chicken is a simple skillet option.

Ingredients

The ingredients for cheesy chicken broccoli are simple and widely available in most U.S. grocery stores. Chicken provides the protein base while broccoli adds texture and the cheese mixture creates the creamy structure of the bake.

• 2 cups cooked chicken breast, diced
• 3 cups broccoli florets
• 1 cup shredded cheddar cheese
• 1/2 cup shredded mozzarella cheese
• 3/4 cup sour cream
• 1/2 cup chicken broth
• 1/2 tsp garlic powder
• 1/2 tsp onion powder
• 1/2 tsp salt
• 1/4 tsp black pepper
• 1/2 cup crushed crackers (optional topping)
• 1 tbsp melted butter

If you prefer a creamier stovetop-style chicken dinner, this creamy garlic chicken uses similar ingredients in a one-pan format.

Step-by-Step Instructions

Step 1: Prepare the oven and baking dish

Preheat the oven to 375°F. While the oven heats, lightly grease a medium baking dish with a small amount of oil or butter. A 9×13-inch baking dish works well for this recipe.

Spread the oil or butter across the bottom and slightly up the sides of the dish. This step helps prevent the cheese mixture from sticking and also makes serving the casserole easier after baking.

Set the dish aside while you prepare the ingredients.

Step 2: Cook or prepare the chicken

If you are starting with raw chicken breast, cook it first before adding it to the casserole. You can cook it in a skillet with a small amount of oil over medium heat for about 6–8 minutes per side, or bake it in the oven at 375°F for about 20 minutes until fully cooked.

The chicken should reach an internal temperature of 165°F and appear fully white inside.

Once the chicken has cooled slightly, cut it into small bite-size pieces. Smaller pieces help the chicken spread evenly throughout the casserole so every serving has a balanced amount.

If you want to save time, rotisserie chicken or leftover roasted chicken works very well for this recipe.

Step 3: Prepare the broccoli

Wash the broccoli and cut it into small florets. Try to keep the pieces about the same size so they cook evenly in the oven.

If the florets are too large, they may stay firm after baking. Smaller pieces blend better with the chicken and creamy sauce.

If you prefer softer broccoli, you can lightly steam the florets for 2–3 minutes before adding them to the mixture. This step is optional but helps create a more tender texture in the finished dish.

Drain the broccoli well so extra moisture does not thin the sauce.

Step 4: Mix the creamy base

In a large mixing bowl combine the following ingredients:

• sour cream
• chicken broth
• garlic powder
• onion powder
• salt
• black pepper

Stir the mixture until everything is fully combined and smooth.

The sauce should look creamy and slightly thick, but still easy to stir. This mixture will coat the chicken and broccoli and become the base of the casserole as it bakes.

Step 5: Combine the ingredients

Add the diced chicken, broccoli florets, and half of the shredded cheese to the bowl with the creamy sauce.

Use a large spoon to gently stir everything together. Continue mixing until the chicken and broccoli are evenly coated.

Try to distribute the ingredients evenly so the casserole bakes consistently and each portion has a good mix of chicken, broccoli, and cheese.

Step 6: Assemble the bake

Transfer the mixture into the prepared baking dish. Spread it evenly across the dish using a spoon or spatula.

Sprinkle the remaining shredded cheese across the top so it forms an even layer. This will melt and create the cheesy top of the casserole.

If you are adding the optional topping, mix the crushed crackers with melted butter in a small bowl. Sprinkle this mixture lightly over the cheese layer to create a slightly crisp topping during baking.

Step 7: Bake the casserole

Place the baking dish in the center of the oven and bake for 25–30 minutes.

As it cooks, the cheese will melt and the sauce will begin to bubble around the edges. The top should become lightly golden and slightly crisp in spots.

If you prefer a deeper golden top, you can leave the dish in the oven for an extra 3–5 minutes near the end of cooking.

Step 8: Rest before serving

Remove the dish from the oven and allow it to rest for about 5 minutes before serving.

During this time the sauce will thicken slightly, which helps the casserole hold together when scooped onto plates.

After resting, use a large spoon to serve portions while the cheese is still warm and melted.

Why You Will Love This Recipe

Cheesy chicken broccoli works because the ingredients support each other structurally during baking.

Chicken provides the protein base and holds its texture even after reheating. Broccoli adds moisture and a slight bite, which keeps the bake from becoming too heavy.

The cheese mixture creates the structure of the dish. As it heats, it melts and thickens around the chicken and broccoli, forming a creamy layer that holds everything together.

Because everything cooks in one baking dish, the flavors blend while the top develops a lightly golden crust. For another comforting baked dinner that works well for family meals, try this chicken pot pie casserole.

Helpful Tips and Variations

• Use rotisserie chicken if you want to shorten prep time.
• For a lighter version, replace sour cream with Greek yogurt.
• If you prefer a stronger cheese flavor, increase the cheddar slightly and reduce the mozzarella.
• Adding cooked rice or pasta can turn this into a full casserole-style dinner..

Storage and Make-Ahead Notes

Store leftover cheesy chicken broccoli in an airtight container in the refrigerator for up to 3 days.

Reheat in the oven at 350°F or in the microwave until heated through.

The bake can also be assembled ahead of time and refrigerated before baking. When ready to cook, place it directly into the oven and add a few extra minutes to the bake time.

For freezing, cool the dish completely and store it in a freezer-safe container for up to 2 months.

Final Thoughts

Cheesy chicken broccoli is a dependable dinner that fits easily into regular home cooking. The ingredients are simple, the cooking process is straightforward, and the result is a warm, balanced meal.

Because it reheats well and stores easily, it also works nicely for meal prep or leftover lunches during the week. If you enjoy chicken paired with grains, these lemon garlic chicken rice bowls offer another balanced meal idea.

Frequently Asked Questions