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A dish of French onion chicken casserole topped with caramelized onions and melted cheese, with a spoon lifting a portion showing gooey, stretchy cheese and tender chicken pieces.

French Onion Chicken Casserole

An easy, creamy, cheesy weeknight casserole that turns pantry staples into comfort food magic. French Onion Chicken Casserole, and crispy onions make this chicken bake taste like you spent hours — but it’s ready in under an hour.
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Prep Time 15 minutes
Cook Time 45 minutes
Rest Time 5 minutes
Total Time 1 hour 5 minutes
Servings: 6 servings
Course: Dinner, Main Course
Cuisine: American, Comfort Food
Calories: 580
Ingredients Equipment Method Nutrition Notes

Ingredients
  

For the French Onion Chicken Casserole
  • 4 Boneless skinless chicken breasts - Patted dry
  • 1 can 10.5 oz - Condensed French onion soup Undiluted
  • 1 cup Sour cream - Or Greek yogurt substitute
  • ½ cup Chicken broth - Adds extra moisture
  • 2 cups Shredded mozzarella cheese - Melty and mild
  • 1 cup Shredded cheddar cheese - Adds sharper flavor
  • Salt and pepper - To season chicken
  • 1 cup Crispy fried onions - For crunchy topping
  • ½ cup Shredded cheese - For final topping
  • Fresh parsley - For garnish
Optional Add-ins
  • 1 cup sliced mushrooms
  • 1 onion - thinly sliced
  • 2 cloves garlic - minced
  • 2 cups cooked rice - or noodles
  • 8 oz cooked egg noodles
  • Sliced potatoes - or biscuit dough on top

Equipment

  • 1 9x13 inch baking dish (Glass or ceramic)
  • 1 Mixing bowl (For sauce)
  • 1 Whisk or spoon (To mix sauce ingredients)
  • 1 Aluminum foil (Cover for first bake stage)
  • 1 Meat thermometer (To check chicken doneness)
  • 1 Oven mitts (For handling hot dish)

Method
 

  1. Preheat oven, grease baking dish, season chicken, and arrange in single layer.
  2. Mix French onion soup, sour cream, broth, and cheeses until smooth and creamy.
  3. Pour sauce over chicken, top with remaining cheese, and cover tightly with foil.
    Unbaked chicken breasts in a foil-lined tray, covered in red sauce and topped generously with shredded cheese.
  4. Bake for 30 minutes covered, then remove foil carefully and check chicken.
    A baking dish filled with golden-brown chicken thighs in a creamy mushroom sauce, garnished with chopped herbs, with a side of white rice in a separate bowl.
  5. Sprinkle crispy onions and extra cheese, bake uncovered 10–15 minutes until golden.
    A dish of French onion chicken casserole topped with caramelized onions and melted cheese, with a spoon lifting a portion showing gooey, stretchy cheese and tender chicken pieces.

Nutrition

Serving: 370gCalories: 580kcalCarbohydrates: 14gProtein: 48gFat: 35gSaturated Fat: 15gPolyunsaturated Fat: 3gMonounsaturated Fat: 10gTrans Fat: 0.4gCholesterol: 145mgSodium: 940mgPotassium: 710mgFiber: 1gSugar: 5gVitamin A: 880IUVitamin C: 3mgCalcium: 320mgIron: 1.9mg

Notes

Nutrition information is automatically calculated, so should only be used as an approximation.

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