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French Onion Chicken Orzo Casserole

Savory French Onion Chicken Orzo Casserole for Cozy Nights

A comforting French Onion Chicken Orzo Casserole that blends caramelized onions, juicy chicken, and orzo pasta in a rich, cheesy sauce.
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Prep Time 15 minutes
Cook Time 45 minutes
Resting Time 10 minutes
Total Time 1 hour 10 minutes
Servings: 6 servings
Course: Dinner
Cuisine: French
Calories: 480
Ingredients Equipment Method Nutrition Notes

Ingredients
  

For the Casserole
  • 2 tablespoons Unsalted Butter Adds richness and flavor
  • 1 tablespoon Olive Oil Enhances caramelization of onions
  • 3 large Yellow Onions Use sweet onions for best flavor
  • 1 tablespoon Sugar Aids in caramelizing onions
  • to taste Salt Seasons the dish
  • 2 cloves Garlic Minced for aromatic depth
  • 1 cup Orzo Pasta Gluten-free if needed
  • 2 cups Cooked Shredded Chicken Rotisserie chicken for convenience
  • 1 teaspoon Dried Thyme Adds herbal notes
  • to taste Black Pepper Essential seasoning
  • 1 cup Low-Sodium Chicken Broth Mimics savory qualities
  • 1/2 cup Heavy Cream Creates a luscious sauce
  • 1 cup Shredded Mozzarella Cheese Brings creaminess and golden melt
  • 1/2 cup Grated Parmesan Cheese Adds an extra layer of flavor
  • optional Worcestershire Sauce/Balsamic Glaze Enhances overall taste

Equipment

  • large skillet
  • baking dish
  • Measuring cups
  • Measuring spoons
  • Wooden spoon

Method
 

Step-by-Step Instructions
  1. In a large skillet, melt the unsalted butter and olive oil over medium-low heat. Add sliced yellow onions, sugar, and a pinch of salt. Cook for 30–40 minutes until caramelized.
  2. While the onions caramelize, season the shredded chicken with salt and pepper. Brown in a separate skillet for about 5–7 minutes.
  3. Once onions are caramelized, pour in the chicken broth, scraping the skillet's bottom. Stir in orzo, heavy cream, thyme, and browned chicken. Simmer for 5–7 minutes.
  4. Preheat the oven to 375°F (190°C). Mix in shredded mozzarella, transfer to a greased baking dish, and bake for 20–25 minutes until bubbling and golden.
  5. Let the casserole rest for 5–10 minutes before serving. Optionally garnish with fresh herbs.

Nutrition

Serving: 1servingCalories: 480kcalCarbohydrates: 45gProtein: 30gFat: 20gSaturated Fat: 10gPolyunsaturated Fat: 2gMonounsaturated Fat: 5gCholesterol: 90mgSodium: 700mgPotassium: 600mgFiber: 2gSugar: 3gVitamin A: 800IUVitamin C: 10mgCalcium: 250mgIron: 2mg

Notes

This casserole is a versatile, make-ahead meal, perfect for family dinners and gatherings. Customize ingredients based on your preference.

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