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French Onion Chicken and Rice Bake

This comforting casserole transforms the flavors of French onion soup into a hearty, one-pan dish that's perfect for busy weeknights or cozy weekends.
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Prep Time 20 minutes
Cook Time 45 minutes
Total Time 1 hour 5 minutes
Servings: 6 servings
Course: Dinner, Main Course
Cuisine: Comfort Food, French
Calories: 450
Ingredients Method Notes

Ingredients
  

Main Ingredients
  • 4 pieces boneless, skinless chicken breasts or thighs Use thighs for more richness
  • 2 large yellow onions Thinly sliced and caramelized for the best flavor
  • 1 cup long-grain white rice Rinsed; or use brown rice for a healthier option (increase liquid and time)
  • 2 cups low-sodium chicken broth Adds deep savory flavor
  • 1/2 cup sour cream or plain Greek yogurt Adds creaminess and tang
  • 1 cup shredded Gruyere or Swiss cheese Melts into gooey, golden goodness
  • 2 tablespoons butter Helps caramelize the onions
  • 1 tablespoon olive oil For browning chicken
  • 2 teaspoons Worcestershire sauce Classic French onion depth
  • 1 teaspoon dried thyme Earthy warmth
  • to taste Salt and pepper
  • 2 cloves garlic, minced Optional, for extra aroma
  • Chopped parsley or chives Optional garnish

Method
 

Preparation
  1. Preheat your oven to 375°F (190°C). Butter a 9×13-inch baking dish and set aside.
  2. In a large skillet, melt butter over medium heat. Add the sliced onions and a pinch of salt. Cook slowly, stirring occasionally, until the onions are deeply caramelized and sweet, about 20–25 minutes.
  3. While onions caramelize, season chicken with salt, pepper, and thyme. Heat olive oil in another skillet over medium-high heat and brown chicken 2–3 minutes per side.
  4. In the baking dish, spread the rinsed rice evenly. Stir in minced garlic (if using), Worcestershire sauce, and chicken broth. Nestle the browned chicken on top of the rice.
  5. Spoon the caramelized onions over the chicken and rice, followed by dollops of sour cream or Greek yogurt.
  6. Cover the dish tightly with foil and bake for 25–30 minutes. Remove foil, sprinkle shredded cheese over the top, and return to the oven uncovered for another 8–10 minutes until cheese is bubbly and golden.
  7. Let rest 5 minutes before serving. Garnish with fresh parsley or chives and serve warm.

Notes

Make it healthier with brown rice and low-fat Greek yogurt. Add white wine for depth and make it spicy with red pepper flakes or Dijon mustard.