
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
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
- 1½ 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
- 1½ cups shredded Gruyère cheese
- salt and pepper
Instructions
- 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
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
Add garlic to the pan, cook 30 seconds. Add orzo, beef broth, and Worcestershire sauce. Stir in caramelized onions.
- 4
Nestle chicken thighs on top of the orzo mixture.
- 5
Bake at 375°F (190°C) for 25 minutes until orzo is tender and chicken is cooked through.
- 6
Top with shredded Gruyère. Broil 2-3 minutes until cheese is golden and bubbly.
- 7
Let rest 5 minutes before serving.
Nutrition Facts (per serving)
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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