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Delicious one-pan French Onion Chicken Bake with melted cheese and caramelized onions.

French Onion Chicken Bake

This comforting one-pan French Onion Chicken Bake features savory, caramelized onions and bubbling cheese over tender chicken, all ready in just 30 minutes.
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Prep Time 10 minutes
Cook Time 20 minutes
Total Time 30 minutes
Servings: 4 servings
Course: Dinner, Main Course
Cuisine: Comfort Food, French
Calories: 450
Ingredients Method Notes

Ingredients
  

Chicken and Seasonings
  • 1 pound boneless chicken breasts or thighs Thighs stay juicier, breasts are leaner.
  • 1 teaspoon salt Adjust to taste.
  • 1 teaspoon black pepper Adjust to taste.
  • 1 teaspoon garlic powder Optional.
Onion Mixture
  • 2 large yellow onions, sliced Cook until soft and golden.
  • 1 tablespoon butter Used for browning onions.
  • 1 tablespoon olive oil Used for browning onions.
  • 1 cup broth (beef or chicken) Use beef for deeper flavor or chicken for a lighter taste.
  • 1 tablespoon flour Optional, used for thickening the sauce.
Cheese and Toppings
  • 1 cup Swiss cheese, shredded Mix with mozzarella for meltiness if desired.
  • 1/2 cup mozzarella cheese, shredded Optional for extra meltiness.

Method
 

Preparation
  1. Season the chicken with salt, pepper, and garlic powder.
  2. Heat a little oil and butter in a large skillet over medium heat.
  3. Sear the chicken for a couple of minutes on each side until lightly golden. Remove to a plate.
  4. Add sliced onions to the skillet with a pinch of salt. Cook, stirring often, until soft and golden. If they start to stick, add a splash of broth and scrape up the brown bits.
  5. Stir in flour if using, then pour in broth and let it simmer for a minute or two until it becomes saucy.
Assembly and Cooking
  1. Nestle the chicken back into the pan, spoon onions over the top, then cover everything with lots of cheese.
  2. Broil for a few minutes until the cheese is bubbly and browned in spots. Watch carefully, as it can brown quickly.
Finishing Touches
  1. Let the dish rest for 5 minutes before serving to allow the sauce to settle.

Notes

Slice onions evenly to ensure they cook down quickly and evenly. Use leftovers of chicken drippings for added flavor. Adjust salt according to the types of broth and seasonings used.