French Onion Chicken Rice Casserole – Comfort Food Made Easy 🍲

If you’re craving warm, cheesy, and comforting flavors in one delicious dish, this French Onion Chicken Rice Casserole is exactly what you need. Combining tender chicken, fragrant caramelized onions, creamy sauce, and perfectly cooked rice, this casserole is the ultimate weeknight winner.

I made it last weekend, and it was an instant hit—so much so that everyone asked for seconds. It’s easy to prepare, packed with flavor, and perfect for family dinners or potlucks.

Why You’ll Love This Casserole

Flavor-packed: Caramelized onions and melted cheese create a rich, savory base.

One-dish convenience: Chicken, rice, and veggies all in one pan.

Comfort food at its best: Creamy, hearty, and satisfying.

Easy to customize: Add mushrooms, carrots, or swap cheeses to your liking.

Ingredients

2 cups cooked chicken, shredded or cubed

1 cup long-grain white rice (uncooked)

1 medium onion, thinly sliced

2 tablespoons butter

1 can (10.5 oz) cream of mushroom or cream of chicken soup

1 cup chicken broth

1 cup shredded Swiss or cheddar cheese

½ teaspoon garlic powder

Salt and pepper to taste

Optional toppings: crispy fried onions, extra cheese, or parsley

Instructions

Preheat oven:
Preheat your oven to 350°F (175°C).

Caramelize the onions:
In a skillet, melt butter over medium heat. Add onions and cook slowly until golden brown and fragrant, about 10-12 minutes.

Mix the casserole:
In a large bowl, combine cooked chicken, rice, caramelized onions, cream soup, chicken broth, garlic powder, salt, and pepper. Stir until well mixed.

Assemble & top:
Transfer the mixture into a greased casserole dish. Sprinkle cheese evenly over the top.

Bake:
Cover with foil and bake for 35 minutes. Remove foil and bake an additional 10 minutes, until cheese is melted and bubbly.

Serve:
Optional: garnish with crispy fried onions or fresh parsley. Enjoy warm!

Tips & Variations