Savory French Onion Chicken Casserole

This delicious Savory French Onion Chicken Casserole is a comforting dish that blends the rich flavors of caramelized onions and tender chicken in a creamy sauce, topped with melted cheese for a perfect weeknight dinner.

Prep time: 15 minutes
Cook time: 30 minutes
Serves: 4

Ingredients

4 boneless chicken breasts

2 large onions, thinly sliced

2 tbsp olive oil

1 tbsp unsalted butter

1 cup chicken broth

1 cup heavy cream

1/2 cup grated Gruyere cheese

1/2 cup grated Parmesan cheese

1 tbsp all-purpose flour

1 tsp salt

1/2 tsp black pepper

1/2 tsp dried thyme

Instructions

1. Preheat your oven to 375°F (190°C).

2. In a large skillet, heat olive oil and butter over medium heat.

3. Add sliced onions and cook, stirring occasionally, until deeply caramelized, about 20 minutes.

4. Remove the onions from the skillet and set aside.

5. In the same skillet, add chicken breasts and sear on both sides until golden, about 5 minutes per side.

6. Remove chicken from the skillet and set aside.

7. In the same skillet, whisk in flour and cook for 1 minute.

8. Gradually whisk in chicken broth and heavy cream, stirring until the mixture thickens.

9. Return the caramelized onions to the skillet, stirring to combine.

10. Place the chicken breasts in a baking dish and pour the onion mixture over the top.

11. Sprinkle Gruyere and Parmesan cheese over the chicken.

12. Bake for 25-30 minutes until the chicken is cooked through and the cheese is golden and bubbly.

Storage

Store leftovers in an airtight container in the refrigerator for up to 3 days.

Reheating

Reheat in the oven at 350°F (175°C) until warmed through, or in the microwave on medium power.

Scan for cooking tips & leave a review!

itsonly.recipes/view/savory-french-onion-chicken-casserole

This recipe is for informational purposes only. Always follow proper food safety practices, cook foods to safe internal temperatures, and store leftovers appropriately. Results may vary.