- 1 ½ lbs boneless, skinless chicken breasts or thighs, diced into bite-sized pieces
- 2 tablespoons olive oil (or butter)
- 3 large onions, thinly sliced
- 3 cloves garlic, minced
- 1 cup uncooked long-grain white rice (or brown rice for a healthier option)
- 4 cups chicken broth
- 1 teaspoon dried thyme (or 1 tablespoon fresh thyme)
- Salt and black pepper, to taste
- 2 cups shredded Gruyère or mozzarella cheese (divided)
- Optional: 1 teaspoon smoked paprika for extra depth
For Topping:
- Fresh parsley, chopped (for garnish)
- Extra shredded cheese (optional)
Step-by-Step Instructions
1. Preheat and Prep
- Preheat your oven to 375°F (190°C).
- Lightly grease a 9x13-inch baking dish or similar-sized casserole dish.
2. Caramelize the Onions
- Heat 1 tablespoon of olive oil (or butter) in a large skillet over medium heat. Add the sliced onions and cook slowly, stirring occasionally, until they are golden brown and caramelized (about 20–30 minutes). Lower the heat if needed to prevent burning.
- Once caramelized, stir in the minced garlic and cook for 1 minute until fragrant. Remove from heat and set aside.
3. Sear the Chicken
- In the same skillet, heat the remaining tablespoon of olive oil over medium-high heat. Season the diced chicken with salt, pepper, and thyme (and smoked paprika, if using).
- Sear the chicken pieces for 3–4 minutes, just until lightly browned on the outside (it will finish cooking in the oven). Remove from heat.
4. Assemble the Casserole
- In the prepared baking dish, spread the uncooked rice evenly across the bottom.
- Layer the seared chicken and caramelized onions over the rice.
- Pour the chicken broth evenly over the mixture. Stir gently to combine, ensuring the rice is submerged in the liquid.
- Sprinkle 1 ½ cups of shredded cheese over the top.
5. Bake
- Cover the baking dish tightly with aluminum foil.
- Bake in the preheated oven for 40–45 minutes, or until the rice is tender and the liquid is absorbed.
- Remove the foil, sprinkle the remaining cheese on top, and bake uncovered for an additional 5–10 minutes, or until the cheese is melted and bubbly.
6. Serve and Enjoy
- Let the casserole cool for 5 minutes before serving.
- Garnish with fresh parsley and serve hot alongside a side salad or steamed veggies for a complete meal.
Tips for Success
- Use Pre-Cooked Rice (Optional): Substitute uncooked rice with cooked rice and adjust the broth accordingly to prevent overcooking.
- Add Veggies: Mix in sautΓ©ed mushrooms, spinach, or bell peppers for added nutrition and flavor.
- Make Ahead: Assemble the casserole ahead of time, cover, and refrigerate. Add 10–15 minutes to the baking time if starting from cold.
- Freeze for Later: Store leftovers in an airtight container in the freezer for up to 3 months. Reheat in the oven or microwave.
Why This Recipe Works
This French Onion Chicken Rice Casserole combines the savory richness of caramelized onions, tender chicken, and creamy melted cheese with the convenience of a one-pan bake. The rice absorbs the flavorful broth, creating a cohesive dish that’s both comforting and satisfying. Whether served as a main course or a potluck contribution, this casserole delivers big on taste and practicality.
Conclusion: A Comfort Food Classic
Whether you’re craving a cozy meal, looking to simplify dinner prep, or simply want to try something new, this French Onion Chicken Rice Casserole is sure to delight. Its bold flavors, creamy textures, and ease of preparation make it a standout recipe that’s as practical as it is delicious. Plus, its adaptability means you can customize it to suit any occasion.
We’d love to see your creations! Tag us in your photos or share your favorite variations—your take on this French onion chicken rice casserole might just inspire others to try it too! π§ ✨