Cheesy Baked Chicken Casserole with Potatoes, Broccoli & Peppers
This baked casserole is the ultimate comfort food: tender chicken layered with golden roasted potatoes, fresh broccoli, sweet peppers, and a creamy cheese sauce. It’s hearty, nourishing, and perfect for a weeknight dinner or meal prep.
Prep time: 20 minutes
Cook time: 45 minutes
Total time: ~1 hour 5 minutes
Servings:4
Ingredients
For the Casserole Base:
1 1/2 lbs (700 g) boneless, skinless chicken breasts or thighs, cut into chunks
4 medium potatoes, peeled & diced into cubes
2 cups broccoli florets
1 red bell pepper, sliced
1 yellow bell pepper, sliced
2 tbsp olive oil
1 tsp garlic powder
1 tsp paprika
Salt & black pepper, to taste
For the Cheese Sauce:
2 tbsp butter
2 tbsp all-purpose flour
2 cups milk
1/2 cup chicken broth
1 tsp Dijon mustard
1/2 tsp dried thyme or oregano
1 1/2 cups shredded cheddar cheese
Salt & pepper to taste
Topping:
1/2 cup shredded cheese
2 tbsp breadcrumbs
Instructions
Prep potatoes:
Parboil potato cubes for 8–10 minutes until just tender, then drain.
Cook chicken:
Season chicken with garlic powder, paprika, salt, and pepper.
Heat 1 tbsp olive oil in a skillet and sear chicken chunks until lightly golden (they don’t need to be fully cooked through).
Prepare cheese sauce:
In a saucepan, melt butter, whisk in flour, and cook 1 minute.
Slowly whisk in warm milk and chicken broth until smooth.
Add mustard, herbs, salt, and pepper.
Stir in cheese until melted and creamy.
Assemble casserole:
Preheat oven to 375°F (190°C).
In a greased baking dish, layer potatoes, chicken, broccoli, and peppers.
Pour cheese sauce evenly over everything.
Top with extra cheese (and breadcrumbs if using).
Bake:
Bake uncovered for 25–30 minutes, until bubbly and golden on top.
Rest 5 minutes before serving.
Notes & Tips
For a lighter version, swap half the potatoes with cauliflower.
Add spinach or zucchini for extra veggies.
Can be made ahead: assemble, cover, and refrigerate up to 24 hours, then bake.
Nutritional Information
Calories: 480 kcal
Protein: 38g
Carbs: 32g
Fat: 22g
Fiber: 5g