Description
This French Onion Chicken Casserole is a creamy, comforting dish that combines tender cooked chicken with caramelized onions, green beans, and a rich blend of mayonnaise, sour cream, and cream. Topped with Swiss cheese and flaky biscuit quarters, it’s baked to golden perfection, making it a perfect hearty meal for family dinners or potlucks.
Ingredients
Chicken Mixture
- 4 cups cooked chicken, shredded or cubed
- 1/2 cup mayonnaise
- 1/4 cup sour cream
- 1/4 cup heavy cream
- 2 tablespoons beef bouillon granules
- 1 teaspoon fine sea salt
- 1 teaspoon ground black pepper
- 1 teaspoon rubbed sage (substitute rosemary or thyme if desired)
- 1-2 cups caramelized onions
- 1 cup French cut green beans
Topping
- 6 slices Swiss cheese
- 1 can refrigerated biscuits, cut into quarters
- Cooking spray, for coating the baking dish
Instructions
- Prepare the Baking Dish: Lightly coat a 9×13-inch baking dish with cooking spray to prevent sticking and preheat your oven to 350°F (175°C).
- Combine Ingredients: In a large mixing bowl, thoroughly mix the shredded or cubed cooked chicken with mayonnaise, sour cream, heavy cream, beef bouillon granules, sea salt, ground black pepper, and rubbed sage until well combined.
- Add Vegetables: Gently fold in the French cut green beans and caramelized onions into the chicken mixture, ensuring even distribution throughout.
- First Bake: Spread the combined mixture evenly into the prepared baking dish and bake in the preheated oven for 30 minutes to allow flavors to meld and the mixture to heat through.
- Add Cheese and Biscuits: After 30 minutes, remove the casserole from the oven and layer the Swiss cheese slices evenly over the hot chicken mixture. Then, distribute the biscuit quarters evenly over the cheese layer.
- Final Bake: Return the dish to the oven and bake for an additional 10 minutes, or until the biscuits are lightly browned and cooked through.
- Rest and Serve: Allow the casserole to rest for 5-10 minutes after baking to set before serving. Enjoy your delicious French Onion Chicken Casserole!
- Feedback Invitation: If you try this recipe, feel free to leave comments or star ratings to share your experience.
Notes
- Beef bouillon granules add a rich flavor; you can substitute with chicken bouillon or broth if preferred.
- Caramelizing your own onions enhances depth of flavor – cook thinly sliced onions over low heat until golden and sweet.
- Refrigerated biscuits can be replaced with homemade biscuit dough or crescent roll dough if desired.
- The casserole is best served warm and can be paired with a fresh salad for a complete meal.
- Leftovers can be refrigerated for up to 3 days and reheated in the oven to maintain crispiness.
- Prep Time: 15 minutes
- Cook Time: 35 minutes
- Category: Casserole
- Method: Baking
- Cuisine: American
