French Onion Chicken Casserole Recipe
French onion chicken casserole is a rich and creamy dish featuring tender boneless chicken breasts topped with caramelized sweet onions and a blend of cheeses, finished with a crunchy French fried onion topping. This comforting casserole combines savory flavors and textures, perfect for a family dinner.
- Prep Time: 30 minutes
- Cook Time: 45 minutes
- Total Time: 1 hour 15 minutes
- Yield: 4-6 servings
- Category: Casserole
- Method: Baking
- Cuisine: American
Ingredients
For the Onions:
- 2 tablespoons unsalted butter
- 3 large sweet onions, thinly sliced
- Salt and black pepper, to taste
- ¼ cup low sodium chicken broth (if needed)
For the Chicken:
- 4 (6 oz) boneless, skinless chicken breasts
- Salt and pepper, to taste
- 1 teaspoon dried oregano
- 1 teaspoon garlic powder
For the Casserole:
- 1 cup sour cream (or plain Greek yogurt)
- 1 cup shredded sharp cheddar cheese
- 1 (10.5 oz) can cream of chicken soup
- 1 cup shredded Swiss, Gruyere or mozzarella cheese (optional)
- 1 (6 oz) container French fried onions
Instructions
- Preheat and Prepare: Preheat your oven to 400°F (200°C). Grease a 9×13 inch or similar size 3-quart baking dish with cooking spray and set aside.
- Caramelize Onions: In a very large skillet, melt 2 tablespoons of unsalted butter over medium-high heat. Add the thinly sliced onions and cook for 5-7 minutes until they start softening. Season lightly with salt and black pepper. Reduce heat to medium and continue cooking for 15 more minutes, stirring occasionally until onions are deeply caramelized. If the pan becomes dry, add ¼ cup low sodium chicken broth to deglaze and prevent burning.
- Season Chicken: Lightly season the boneless skinless chicken breasts with salt, pepper, dried oregano, and garlic powder on both sides. Place them evenly in the prepared baking dish.
- Mix Casserole Sauce: In a bowl, combine 1 cup sour cream (or plain Greek yogurt), 1 cup shredded sharp cheddar cheese, and 1 (10.5 oz) can cream of chicken soup until well blended.
- Assemble Casserole: Spoon the caramelized onions evenly over the seasoned chicken breasts. Dollop the creamy sour cream and cheese mixture on top of the onions, spreading it into a relatively even layer. If using, sprinkle the shredded Swiss, Gruyere, or mozzarella cheese evenly over the top.
- Bake: Place the casserole in the preheated 400°F oven and bake uncovered for 40 to 45 minutes, until the chicken reaches an internal temperature of 165°F and is fully cooked through. Larger chicken breasts may require additional cooking time.
- Add Topping and Final Bake: Remove the casserole from the oven. Sprinkle the French fried onions evenly on top. Return the casserole to the oven and bake for an additional 3 to 5 minutes, watching closely to prevent the onions from burning. Remove from oven and serve hot.
Notes
- Soup: Cream of chicken soup complements the flavors well, but cream of mushroom soup is a great alternative for variety.
- Extra Cheese: Optional extra cheese on top (Swiss, Gruyere, or mozzarella) adds a lovely melty texture and attractive browning.
- Fried Onions: While optional, the French fried onion topping adds a wonderful crunchy texture that contrasts beautifully with the creamy casserole.
- Serving Suggestions: Serve this casserole over steamed white or brown rice, long thin noodles, or with crusty bread. Adding steamed vegetables or a simple salad makes a complete meal.
- Make Ahead: Assemble the casserole ahead, cover with plastic wrap, and refrigerate for 1-2 days. When ready, bake at 400°F for 45-50 minutes until warmed through and bubbly, adding fried onions in the last 5 minutes.
- Leftovers: Store leftovers in an airtight container in the fridge up to 5 days. Reheat in the microwave, slicing chicken beforehand for even warming. Fried onion texture will soften but flavor remains delicious.
Find it online: https://lauracooks.com/french-onion-chicken-casserole-recipe/