French Onion Chicken Casserole Recipe

Close up of scooping french onion chicken casserole from a baking dish.

4.95 from 151 votes

French Onion Chicken Casserole Recipe

This French Onion Chicken Casserole is creamy, cheesy, easy to make, and topped with crispy fried onions for the perfect family dinner.

Prep Time10

Cook Time35

Total Time45

Course: Main Course

Cuisine: American

Servings:

Author: Kristyn Merkley

Ingredients

3 cups cooked chicken, chopped
1 cup celery, chopped (or french style green beans)
1 cup cheddar cheese, shredded
1 cup sour cream
½ cup mayo
1 (10.5-ounce) can cream of chicken soup
½ cup slivered almonds
6 ounces French's fried onions

Instructions

Preheat oven to 350°F and coat a 9x13 baking dish with cooking spray.
In a large bowl, stir celery, cheese, sour cream, mayo and cream of chicken. Add chicken and almonds. Spoon into dish.
Bake uncovered for 30 minutes. Sprinkle fried onion and cook another 5 minutes. Let stand 5-10 minutes. Enjoy!

Video

Notes

Recipe Tips.

Use rotisserie chicken to make this recipe even faster on busy nights.
Add the fried onions during the last few minutes of baking so they stay crispy and golden.
Shred your own cheddar cheese for the smoothest texture and best flavor.
Let the casserole rest before serving so it sets up and scoops more easily.

Make ahead of time. Assemble and cover with plastic wrap and store in the fridge for a day. If freezing, then add another layer of aluminum foil and freeze for 2-3 months. Thaw overnight in the fridge before baking. Do not add the fried onions until the last 5 minutes of baking time.

Store. Divide the leftovers into single serve portions. Store the portions in airtight containers and keep in the fridge for days. To reheat quickly, use the microwave. If you have a little more time reheat in the oven.

The fried onions may become mushy as it sits in the fridge. To crisp them back up simply stick the casserole under the broiler. Watch carefully as they can go from soggy to burnt really quickly.

Nutrition