This Creamy Cheesy Chicken & Vegetable Bake is a comforting one-dish dinner loaded with tender chicken, broccoli, zucchini, colorful bell peppers, garlic, herbs, and a rich creamy sauce. Finished with a bubbling layer of melted mozzarella and Parmesan, it is hearty enough for dinner while still packing plenty of vegetables into every serving.
Why You’ll Love It
- Juicy chicken and colorful vegetables all baked in one dish
- Rich garlic cream sauce keeps everything tender and flavorful
- Golden melted cheese creates an irresistible bubbly topping
- Perfect for family dinners, meal prep, or easy weeknight cooking
Ingredients Overview
Chicken
- 1½ lbs boneless, skinless chicken breasts, cut into bite-size pieces
- 1 tbsp olive oil
- 1 tsp garlic powder
- 1 tsp Italian seasoning
- ½ tsp paprika
- ¾ tsp salt
- ½ tsp black pepper
Vegetables
- 2 cups broccoli florets
- 1 medium zucchini, sliced
- 1 red bell pepper, sliced
- 1 yellow bell pepper, sliced
- ½ small onion, sliced
- 2 garlic cloves, minced
Creamy Sauce
- 2 tbsp unsalted butter
- 2 tbsp all-purpose flour
- 1½ cups chicken broth
- 1 cup heavy cream
- ½ cup freshly grated Parmesan cheese
- 1 tsp Italian seasoning
- ½ tsp garlic powder
- ¼ tsp black pepper
- Salt to taste
Cheese Topping
- 1½ cups shredded mozzarella cheese
- ½ cup shredded cheddar cheese
- ¼ cup grated Parmesan cheese
Garnish
- 2 tbsp fresh parsley, chopped
- Fresh thyme
- Freshly cracked black pepper
Step-by-Step Instructions
1. Prepare the Chicken
Preheat the oven to 400°F (200°C).
Place the chicken pieces in a bowl and drizzle with olive oil.
Season with garlic powder, Italian seasoning, paprika, salt, and black pepper.
Toss until evenly coated.
2. Brown the Chicken
Heat a large skillet over medium-high heat.
Add the seasoned chicken and cook for 4–5 minutes, stirring occasionally, until lightly golden on the outside.
The chicken does not need to be fully cooked.
Transfer it to a lightly greased baking dish.
3. Add the Vegetables
Arrange the broccoli, zucchini, red bell pepper, yellow bell pepper, onion, and garlic around the chicken.
Gently toss so the vegetables and chicken are evenly distributed throughout the baking dish.
4. Make the Cream Sauce
Melt the butter in a saucepan over medium heat.
Whisk in the flour and cook for about 1 minute.
Slowly pour in the chicken broth while whisking continuously.
Add the heavy cream, Italian seasoning, garlic powder, black pepper, and a small pinch of salt.
Simmer gently for 3–4 minutes, until slightly thickened.
Gradually stir in the Parmesan until smooth and creamy.
5. Assemble the Casserole
Pour the creamy garlic Parmesan sauce evenly over the chicken and vegetables.
Gently stir or shake the dish so some of the sauce settles between all the ingredients.
Sprinkle mozzarella, cheddar, and Parmesan generously over the top.
6. Bake
Bake uncovered for 20–25 minutes, or until the chicken reaches an internal temperature of 165°F (74°C) and the vegetables are tender.
The sauce should be bubbling around the edges.
For a deeply golden cheese topping, broil for 1–2 minutes at the end while watching carefully.
7. Serve
Remove the casserole from the oven and allow it to rest for about 5 minutes.
Sprinkle with fresh parsley, thyme, and cracked black pepper.
Serve warm with plenty of creamy sauce spooned over each portion.
Cooking Tips
- Cut the chicken into similar-sized pieces so it cooks evenly.
- Avoid slicing the zucchini too thin or it may become overly soft.
- Keep the cream sauce at a gentle simmer to prevent separation.
- Freshly grated Parmesan melts more smoothly than pre-shredded cheese.
- Broil briefly at the end for the browned, bubbly cheese finish shown in the dish.
Serving Suggestions
Serve this creamy chicken and vegetable bake with:
- Garlic bread
- Steamed rice
- Mashed potatoes
- Buttered pasta
- Fresh green salad
Storage
Store leftovers in an airtight container in the refrigerator for up to 3 days.
Reheat covered in a 350°F (175°C) oven or gently in the microwave. Add a splash of chicken broth or cream if the sauce thickens too much.
Leftover Ideas
- Toss leftovers with cooked pasta for a creamy chicken pasta dinner.
- Serve over rice or mashed potatoes.
- Spoon into tortillas and make cheesy chicken wraps.
- Add extra mozzarella and rebake as a quick casserole.
FAQs
Can I use chicken thighs instead of chicken breasts?
Yes. Boneless, skinless chicken thighs work beautifully and stay especially juicy.
Can I use frozen vegetables?
Yes, but thaw and drain them well first so they do not release too much water into the sauce.
Can I make this ahead of time?
Yes. Assemble the casserole several hours ahead, cover, refrigerate, and bake when ready.
Can I make the sauce lighter?
Yes. Replace some or all of the heavy cream with half-and-half or additional chicken broth.
Final Thoughts
Creamy Cheesy Chicken & Vegetable Bake combines juicy chicken, broccoli, zucchini, bell peppers, garlic, herbs, and a rich Parmesan cream sauce beneath a golden layer of melted cheese. Colorful, comforting, and easy to prepare, it is a satisfying family dinner that makes getting plenty of vegetables onto the table especially delicious.
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