About This Recipe
You know that meal that is the food equivalent of a warm hug after a long day? This French Onion Chicken Casserole Recipe has become that for our family. I still can remember the first time I made it - it was one of those rainy nights, and Sultan and I wanted something hearty, cheesy, and comforting. I had onions, and leftover rotisserie chicken in the fridge, and the next thing you know - this recipe came from love and a little bit of magic in the kitchen.
Tools for French Onion Chicken Bake
To make this cozy and cheesy French Onion Chicken Casserole Recipe, you’ll need a 9x13 baking dish, skillet, and a wooden spoon for all that savory flavor. I’ve linked a few kitchen staples—dependable, affordable, and perfect for weeknight casseroles. Don’t forget your oven mitts—this one comes out hot and bubbling!
Ingredients
2 tbsp butter
3 large yellow onions, thinly sliced
1 tsp sugar
1/2 tsp salt
1/4 cup beef broth
3 cups shredded cooked chicken
1 (10.5 oz) can cream of chicken soup
1/2 cup sour cream
4 oz cream cheese, softened
1/2 tsp black pepper
1/4 tsp garlic powder
1 cup shredded Swiss cheese
1 cup shredded mozzarella cheese
1 cup crispy fried onions
Optional: 1/4 cup panko or breadcrumbs for extra crunch
Instructions
Step 1
In a large skillet, melt butter over medium-low heat. Add sliced onions, sugar, and salt. Cook slowly for 25–30 minutes, stirring often, until deep golden brown. Deglaze with beef broth and stir to combine. Set aside.
Step 2
In a large bowl, mix shredded chicken, cream of chicken soup, sour cream, cream cheese, pepper, and garlic powder. Stir until creamy and combined.
Step 3
In a 9x13 baking dish, layer the chicken mixture evenly. Top with caramelized onions, then sprinkle on Swiss and mozzarella cheeses.
Step 4
Bake uncovered for 25–30 minutes until bubbly and golden on top.
Step 5
Sprinkle crispy fried onions and optional panko on top. Return to the oven for 5 more minutes until crispy.
Step 6
Let cool slightly before serving. Enjoy with crusty bread or a side salad.
Nutrition Information
Calories
445
Saturated Fat
9g
Carbs
22g
Sugars
6g
Protein
32g
Sodium
810mg
Fiber
2g
Secret Tips
Caramelize the onions slowly. Don’t rush this step — low and slow brings out the magic.
Use rotisserie chicken. It cuts prep time and adds flavor.
Bake uncovered. That cheese needs to get golden and bubbly.
Add a little beef broth. It amps up the French onion vibe.
Use rotisserie chicken. It cuts prep time and adds flavor.
Bake uncovered. That cheese needs to get golden and bubbly.
Add a little beef broth. It amps up the French onion vibe.
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