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French Onion Chicken Casserole

Creamy, cheesy, and full of savory onion flavor, this easy French Onion Chicken Casserole is a family favorite every time.
Prep Time8 minutes
Cook Time40 minutes
Total Time48 minutes
Course: Dinner, entree, Main Course, main dish
Cuisine: American, French American
Keyword: angel chicken casserole, creamy french onion casserole, easy dinner, easy french onion chicken, french onion casserole, french onion casserole recipe, french onion chicken casserole, french onion chicken casserole recipe, quick dinner
Servings: 8 servings
Author: Alyssa Rivers

Equipment

  • 1 9 x 13-inch baking dish or 3-quart baking dish

Ingredients

  • 4 cups cooked, shredded chicken about 3-4 whole breasts, or one large rotisserie chicken
  • 1 cup sour cream
  • 1 (10.5-ounce) can condensed cream of chicken soup
  • 1 (10.5-ounce) can French onion soup
  • 1 ¼ cup shredded Swiss cheese or gruyere cheese
  • 1 envelope onion soup mix about 3 tablespoons
  • 2 ½ cups French-fried onions about 1 6-ounce package

Instructions

  • Preheat the oven to 350 degrees Fahrenheit and spray a 9 x 13-inch baking dish with nonstick cooking spray and set aside.
  • Add 4 cups cooked, shredded chicken, 1 cup sour cream, 1 (10.5-ounce) can condensed cream of chicken soup, 1 (10.5-ounce) can French onion soup, 1 ¼ cup shredded Swiss cheese, and 1 envelope onion soup mix to a large bowl and mix to combine.
  • Add the chicken mixture evenly to the prepared baking dish.
  • Bake uncovered for 25-30 minutes, until heated through and bubbling around the edges.
  • Add 2 ½ cups French-fried onions to the top and bake for 5-10 more minutes. Let it stand for 5-10 minutes before serving.

Notes

Storage & Make Ahead Instructions
  • Storage: Store leftovers in an airtight container in the fridge for up to 5 days and reheat in 30-second microwave intervals.
  • Make Ahead: Assemble up to 24 hours in advance or freeze for up to 3 months. Cover tightly with plastic wrap (and foil if freezing). Thaw overnight before baking uncovered at 350°F for 35–40 minutes, adding crispy onions in the last 5–10 minutes.

Nutrition

Calories: 411kcal | Carbohydrates: 17g | Protein: 25g | Fat: 27g | Saturated Fat: 12g | Polyunsaturated Fat: 2g | Monounsaturated Fat: 5g | Cholesterol: 90mg | Sodium: 1093mg | Potassium: 428mg | Fiber: 1g | Sugar: 3g | Vitamin A: 416IU | Vitamin C: 0.5mg | Calcium: 206mg | Iron: 1mg

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