French Onion Chicken Rice Casserole

There’s something magical about the aroma of French onion soup wafting through a cozy kitchen on a cool evening. Now, imagine capturing that rich, savory flavor in a bubbly, cheesy casserole that’s hearty enough to feed a hungry family. French Onion Chicken Rice Casserole is the kind of soul-satisfying dish that turns an ordinary night into a comforting memory.

Whether you’re whipping up a quick weeknight dinner or preparing a make-ahead meal for a potluck, this casserole is always a hit. It brings together creamy chicken, tender rice, and melty cheese—plus the unbeatable crunch of crispy fried onions. It’s like your favorite soup got a comfort food makeover!

Ingredients You’ll Need

This casserole is all about pantry-friendly ingredients and simple preparation. Here’s everything you need:

2 cups shredded cooked chicken (rotisserie works great!)
2 cups cooked white rice
1 can (10.5 oz) cream of chicken soup
1 cup sour cream
1 packet dry French onion soup mix
1½ cups shredded mozzarella cheese
1½ cups crispy fried onions, divided
Salt and pepper to taste
Fresh parsley for garnish (optional)

Tip: Use leftover chicken or rotisserie chicken to cut down on prep time!

Step-by-Step Instructions

This casserole couldn’t be easier to make. Just mix, bake, and enjoy!

Preheat and Prep: Start by preheating your oven to 350°F (175°C). Lightly grease a 9×13-inch baking dish with cooking spray or butter to prevent sticking.
Mix the Filling: In a large mixing bowl, combine the shredded chicken, cooked white rice, cream of chicken soup, sour cream, dry French onion soup mix, shredded mozzarella cheese, and 1 cup of the crispy fried onions. Season the mixture with salt and pepper to taste. Mix until everything is evenly coated and creamy.
Assemble: Spread the chicken and rice mixture evenly into your prepared baking dish.
Top It Off: Sprinkle the remaining ½ cup of crispy fried onions over the top for a crunchy, golden finish.
Bake: Place the dish in the oven and bake uncovered for 25–30 minutes, or until the casserole is bubbly and the top is golden brown.
Garnish and Serve: Sprinkle chopped fresh parsley on top for a pop of color and freshness. Serve warm and enjoy every bite!

Why You’ll Love This Recipe

There are countless casseroles out there, but this one truly stands out. Here’s why:

One-dish wonder – Everything bakes together in one pan!
Cozy & comforting – Perfect for chilly evenings or when you need a hug in food form.
Kid-approved – Creamy, cheesy, and full of flavor without being too “fancy.”
Crowd-pleaser – Great for family dinners, potlucks, or meal trains.
Quick prep – Just 10 minutes of mixing before it hits the oven.

Serving Suggestions

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