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French Onion Chicken Orzo Casserole – Cozy, Cheesy & Full of Flavor

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A cozy, cheesy French onion-inspired casserole with caramelized onions, juicy chicken, orzo pasta, and melted Gruyère — baked in a creamy broth for the perfect one-dish dinner.

Ingredients

Scale

  • 2–3 cups cooked shredded or cubed chicken

  • 1 cup uncooked orzo

  • 3 large yellow onions, thinly sliced

  • 2 tbsp olive oil

  • 1 tbsp butter

  • 1 tsp balsamic vinegar (optional)

  • 1 tsp garlic, minced

  • ½ tsp dried thyme

  • 2½ cups beef or chicken broth

  • ½ cup heavy cream or half & half

  • 1½ cups shredded Gruyère (divided)

  • Salt & pepper to taste

  • Optional: Parmesan, sautéed mushrooms, spinach

Instructions

  • Caramelize onions in olive oil and butter over medium-low heat for 30–40 minutes. Stir in garlic, thyme, balsamic.

  • In a large bowl or baking dish, mix cooked chicken, orzo, caramelized onions, broth, cream, 1 cup Gruyère, salt, and pepper.

  • Cover and bake at 375°F for 35–40 minutes.

  • Uncover, stir gently, top with remaining cheese, and bake 10–15 more minutes.

  • Let rest 5–10 minutes before serving.

Notes

  • Use rotisserie chicken to save time.

  • Add spinach or mushrooms for variation.

  • Freeze leftovers or prep ahead for easy dinners.

Find it online: https://goldenflavorstudio.com/french-onion-chicken-orzo-casserole-cozy-cheesy-full-of-flavor/