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French Onion Chicken and Rice Bake

A cozy casserole that combines caramelized onions, tender chicken, and creamy rice for a comforting meal that feels like a celebration.
Prep Time 20 minutes
Cook Time 45 minutes
Total Time 1 hour 5 minutes
Course Dinner, Main Course
Cuisine Comfort Food, French
Servings 4 servings
Calories 450 kcal

Ingredients
  

Chicken

  • 4 pieces bone-in, skin-on chicken thighs Juicy and forgiving in the bake.

Vegetables and Aromatics

  • 2 large yellow onions, thinly sliced The star that becomes sweet and golden.
  • 3 tablespoons butter For beautiful caramelization.
  • 3 cloves garlic, minced Fragrant and warm.
  • 1 teaspoon thyme (dried or 1 tablespoon fresh) Aromatic lift.

Grains

  • 1.5 cups long-grain white rice, rinsed Creates the perfect tender bed.

Liquids

  • 3 cups low-sodium chicken broth For savory depth.
  • 1/2 cup dry white wine or additional broth Adds brightness (optional).
  • 1 tablespoon Worcestershire sauce Earthy umami (optional).

Cheese

  • 1 cup Gruyere or Swiss cheese, grated Melty, nutty finish.

Fats and Seasonings

  • 1 tablespoon olive oil For searing.
  • Salt and black pepper to taste

Instructions
 

Preparation

  • Preheat the oven to 375°F (190°C). Pat the chicken dry and season generously with salt and pepper.
  • In a large ovenproof skillet, heat olive oil over medium-high heat. Sear the chicken skin-side down until golden brown, 4 to 5 minutes. Flip and cook another 2 minutes. Remove and set aside.
  • Reduce heat to medium, add butter, then the sliced onions. Cook slowly, stirring occasionally, until the onions are deeply golden and sweet, about 20 minutes.
  • Stir in garlic and thyme for 1 minute until fragrant, then add the rice, stirring to coat with the onion mixture.
  • Pour in the chicken broth, wine (if using), and Worcestershire sauce. Bring to a gentle simmer and season to taste.
  • Nestle the seared chicken thighs into the rice, skin-side up. Cover the skillet with a lid or foil and transfer to the oven.

Baking

  • Bake for 30 to 35 minutes, or until the rice is tender and the chicken reaches an internal temperature of 165°F (74°C).
  • Remove from oven, sprinkle Gruyere over the top, and broil for 2 to 4 minutes until the cheese is bubbly and golden.
  • Let it rest for 5 minutes before serving.

Notes

Swap in mushrooms and vegetable broth for a vegetarian take. For a heartier option, use brown rice. This dish can be made ahead by preparing the caramelized onions and rice mixture in advance.
Keyword Casserole, Comfort Food, Easy Recipe, French Onion Chicken, One-Pot Meal