French Onion Chicken Orzo Casserole Recipe

French Onion Chicken Orzo Casserole Recipe

Quick Answer

Caramelize 3 sliced onions 20 min. Sear 6 chicken thighs, set aside. Add 1.5 cups orzo, 2 cups beef broth, and onions to the pan. Nestle chicken on top, bake 375°F 25 min. Top with Gruyère, broil 3 min until bubbly. Serves 6.

By RecipesQueen Kitchen • June 15, 2026

Prep: 15 min
Cook: 50 min
Servings: 6
Difficulty: Medium
french onionchickenorzocasseroleone pancheesecomfort food
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All the flavors of French onion soup meet a hearty chicken dinner in this one-pan casserole. Caramelized onions, tender orzo pasta, juicy chicken thighs, and a blanket of melted Gruyère cheese — it is pure comfort in a baking dish.

The orzo absorbs the rich beef broth as it bakes, becoming creamy and flavorful while the cheese on top turns golden and bubbly.

Ingredients

  • 6 boneless, skinless chicken thighs
  • 3 large onions, thinly sliced
  • cups orzo pasta
  • 2 cups beef broth
  • 2 tbsp butter
  • 2 tbsp olive oil
  • 3 cloves garlic, minced
  • 1 tbsp fresh thyme leaves
  • 1 tbsp Worcestershire sauce
  • cups shredded Gruyère cheese
  • salt and pepper

Instructions

  1. 1

    Heat butter and 1 tbsp olive oil in a large oven-safe skillet over medium heat. Add onions and cook 20 minutes, stirring occasionally, until deeply caramelized. Remove and set aside.

  2. 2

    Season chicken with salt, pepper, and thyme. In the same pan, heat remaining olive oil over medium-high heat. Sear chicken 3 minutes per side until golden. Remove.

  3. 3

    Add garlic to the pan, cook 30 seconds. Add orzo, beef broth, and Worcestershire sauce. Stir in caramelized onions.

  4. 4

    Nestle chicken thighs on top of the orzo mixture.

  5. 5

    Bake at 375°F (190°C) for 25 minutes until orzo is tender and chicken is cooked through.

  6. 6

    Top with shredded Gruyère. Broil 2-3 minutes until cheese is golden and bubbly.

  7. 7

    Let rest 5 minutes before serving.

Nutrition Facts (per serving)

548
Calories
41g
Protein
27g
Fat
42g
Carbs
4g
Fiber
7g
Sugar
668mg
Sodium

Frequently Asked Questions

Can I use a different pasta?

Orzo is ideal because it absorbs broth beautifully. Ditalini or small shells are good alternatives. Avoid long pasta shapes.

What if I don't have Gruyère?

Swiss cheese or Emmental are the closest substitutes. Mozzarella works but changes the flavor profile.

Can I use chicken breast?

Yes, but thighs are recommended — they stay juicier during the baking time. If using breast, check internal temp at 20 minutes.

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