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French Onion Chicken Orzo Casserole Easy Weeknight Dinner

FRENCH ONION CHICKEN ORZO CASSEROLE centered hero view, clean and uncluttered

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This french onion chicken orzo casserole is a creamy and satisfying easy dinner perfect for weeknight meals. Enjoy tender chicken, caramelized onions, and cheesy orzo in a family dinner that’s simple to prepare in one pan.

Ingredients

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  • 2 tablespoons unsalted butter
  • 1 tablespoon olive oil
  • 2 large yellow onions thinly sliced
  • 1 teaspoon sugar
  • ½ teaspoon salt
  • 3 garlic cloves minced
  • 1 ½ cups orzo pasta
  • 2 cups cooked shredded chicken rotisserie works well
  • ½ teaspoon dried thyme
  • ¼ teaspoon black pepper
  • 2 cups low-sodium chicken broth
  • 1 cup heavy cream or half and half for lighter option
  • 1 ½ cups shredded mozzarella cheese
  • ½ cup grated Parmesan cheese
  • Optional ½ teaspoon Worcestershire sauce or balsamic glaze for added depth

Instructions

  1. Heat the butter and olive oil in a large ovenproof skillet over medium heat and add the sliced onions with sugar and salt; cook for 20 to 25 minutes, stirring now and then, until the onions turn golden brown and caramelized. Add the minced garlic during the last couple of minutes and stir it in.
  2. Mix in the orzo and cook for 2 minutes to toast it lightly. Add the shredded chicken, thyme, pepper, and Worcestershire sauce if you are using it, then stir everything together.
  3. Pour in the chicken broth and cream, bring to a gentle simmer then reduce the heat to low; cover and cook for 8 to 10 minutes, stirring occasionally, until the orzo is soft.
  4. Stir 1 cup of mozzarella and the Parmesan cheese into the mixture and combine until the cheese has melted and the sauce is creamy.
  5. Set your oven to 375°F (190°C) and sprinkle the remaining ½ cup mozzarella on top. Bake uncovered for 10 to 15 minutes until the casserole is bubbling and golden on top.
  6. Allow the casserole to rest for 5 to 10 minutes before serving and garnish with fresh thyme or parsley if you like.

Notes

  • For crisp tops, broil 2–3 minutes at the end

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