Easy French Onion Chicken Rice Casserole

This creamy French onion chicken rice casserole is the perfect one-dish meal for busy weeknights! Packed with tender chicken, fluffy rice, and that classic French onion flavor we all love. It’s comfort food at its finest.

Why You’ll Love This Casserole

• One-dish meal – everything bakes together
• Uses leftover chicken – perfect for meal planning
• Creamy and cheesy – ultimate comfort food
• Family-friendly – kids and adults love it
• Ready in 45 minutes – quick weeknight dinner
• Freezer-friendly – make ahead option

Ingredients You’ll Need

Main Ingredients:

• 2 cups shredded cooked chicken
• 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

Cheese and Toppings:

• 1½ cups shredded mozzarella cheese
• 1½ cups crispy fried onions (divided)
• Salt and black pepper to taste
• Fresh parsley for garnish (optional)

Step-by-Step Instructions

Step 1: Prepare Your Kitchen

• Heat your oven to 350°F (175°C)
• Grease a 9×13-inch baking dish with butter or cooking spray
• Gather all ingredients on your counter

Step 2: Mix the Casserole Base

1. In a large mixing bowl, combine the shredded chicken and cooked rice
2. Add the cream of chicken soup – stir well
3. Mix in the sour cream until everything is creamy
4. Sprinkle in the French onion soup mix – this adds amazing flavor
5. Add the mozzarella cheese and mix gently
6. Stir in 1 cup of the crispy fried onions (save ½ cup for topping)

Step 3: Season and Taste

• Add salt and pepper to your liking
• Stir everything together until well combined
• Taste and adjust seasoning if needed

Step 4: Assemble the Casserole

1. Spread the mixture evenly into your prepared baking dish
2. Smooth the top with a spoon
3. Sprinkle the remaining ½ cup crispy fried onions on top

Step 5: Bake to Perfection

• Bake uncovered for 25-30 minutes
• Look for bubbling edges and golden brown top
• Let cool for 5 minutes before serving

Step 6: Serve and Enjoy

• Garnish with fresh chopped parsley if desired
• Serve warm with a side salad or steamed vegetables

Helpful Tips for Best Results

For the Perfect Casserole:

• Use rotisserie chicken for quick prep
• Day-old rice works best – it’s less sticky
• Don’t skip the French onion soup mix – it’s the flavor star

Make-Ahead Instructions:

• Assemble casserole without crispy onions
• Cover and refrigerate up to 2 days
• Add crispy onions just before baking
• May need extra 5-10 minutes if cold

Freezing Instructions:

• Freeze assembled casserole up to 3 months
• Thaw overnight in refrigerator
• Bake as directed, adding 10-15 minutes

Storage Tips:

• Refrigerate leftovers up to 4 days
• Reheat individual portions in microwave
• Cover with foil when reheating in oven

Recipe Variations

Try These Delicious Twists:

• Add vegetables: frozen peas, corn, or diced bell peppers
• Switch the cheese: try cheddar or Swiss cheese
• Make it spicy: add a pinch of red pepper flakes
• Use brown rice: for a healthier option

Serving Suggestions

Perfect Side Dishes:

• Green salad with vinaigrette
• Steamed broccoli or green beans
• Crusty dinner rolls
• Roasted vegetables

Nutrition Information

Serves 6-8 people

This hearty casserole provides protein from chicken and cheese, carbohydrates from rice, and plenty of comfort food satisfaction. Perfect for feeding a hungry family!

Keywords: French onion chicken casserole, chicken rice casserole, easy casserole recipe, comfort food, one dish meal, family dinner, make ahead casserole