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–+ servings

French Onion Chicken Orzo Casserole

600kcal
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Prep 35 minutes
Cook 30 minutes
Total 1 hour 5 minutes
A comforting casserole combining juicy chicken, creamy orzo, and sweet caramelized onions, making it the perfect hearty meal for busy weeknights or lazy Sundays.
Servings 6 servings
Course Comfort Food, Main Course
Cuisine French

Ingredients

For the base
  • 2 tablespoons unsalted butter Adds rich flavor and creaminess.
  • 1 tablespoon olive oil A heart-healthy fat that enhances taste.
  • 2 large yellow onions (thinly sliced) Sweetness in the dish; a classic French flavor base.
  • 1 teaspoon sugar Helps caramelize onions for that deep, golden color.
  • 1/2 teaspoon salt Brings out the flavors of all ingredients.
  • 3 cloves garlic (minced) Boosts flavor and supports immunity.
For the casserole
  • 1 1/2 cups orzo pasta A small pasta that cooks quickly and absorbs flavors beautifully.
  • 2 cups cooked shredded chicken Rotisserie works well; adds protein and flavor.
  • 1/2 teaspoon dried thyme Offers an aromatic herbal note.
  • 1/4 teaspoon black pepper Adds a hint of spice.
  • 2 cups low-sodium chicken broth Provides moisture and flavor.
  • 1 cup heavy cream Creates a rich, creamy texture.
  • 1 1/2 cups shredded mozzarella cheese Melts beautifully for a cheesy top layer.
  • 1/2 cup grated Parmesan cheese Adds a salty, nutty flavor.
  • Optional 1/2 teaspoon Worcestershire sauce or balsamic glaze For added depth and umami.

Method

Preparation
  1. In a large oven-safe skillet or Dutch oven, melt the butter and olive oil over medium heat.
  2. Add the sliced onions, sugar, and salt. Cook for 20–25 minutes, stirring occasionally, until the onions are deeply golden and caramelized.
  3. Stir in the minced garlic during the last 1–2 minutes for extra flavor.
Casserole Mixture
  1. Stir in the orzo and cook for 2 minutes, allowing it to lightly toast.
  2. Add in the shredded chicken, thyme, black pepper, and Worcestershire sauce if using. Mix well to combine.
Cooking
  1. Pour in the chicken broth and heavy cream. Bring the mixture to a gentle simmer.
  2. Reduce the heat to low, cover, and let it cook for 8–10 minutes, stirring occasionally, until the orzo is tender.
  3. Remove the skillet from heat and stir in 1 cup of mozzarella and Parmesan cheese. Mix until the cheeses melt and are creamy.
Baking
  1. Preheat your oven to 375°F (190°C).
  2. Sprinkle the remaining 1/2 cup mozzarella over the top of the casserole.
  3. Bake uncovered for 10–15 minutes, until bubbly and golden on top.
Serving
  1. Let the casserole rest for 5–10 minutes before serving.
  2. Garnish with fresh thyme or parsley if desired.

Nutrition

Serving1gCalories600kcalCarbohydrates45gProtein35gFat30gSaturated Fat18gSodium800mgFiber3gSugar6g

Notes

Tips: Don't rush the onions during caramelization for enhanced flavor, and consider using rotisserie chicken for convenience. Customize the cheese based on preference.

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