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French Onion Chicken Orzo Casserole

French Onion Chicken Orzo Casserole
60min Total Time
6 people Servings
Easy Difficulty
Moderate Cost
425 kcal Calories

Ingredients

6
  • 1 pound chicken breasts, cooked and shredded
  • 8 ounces orzo pasta
  • 2 large onions, thinly sliced
  • 3 cups chicken broth
  • 1 cup shredded Gruyère cheese
  • 1 tablespoon olive oil
  • 2 cloves garlic, minced
  • 1 tablespoon fresh thyme leaves
  • 1 teaspoon salt
  • 1/2 teaspoon black pepper
  • 1/4 teaspoon red pepper flakes (optional)
  • 1 tablespoon balsamic vinegar

Instructions

1

Preheat your oven to 375°F (190°C).

2

In a large skillet, heat olive oil over medium heat. Add onions and cook until caramelized, about 15-20 minutes.

3

Stir in garlic and thyme; cook for another minute.

4

In a large bowl, combine cooked chicken, orzo, caramelized onions, chicken broth, salt, black pepper, red pepper flakes, and balsamic vinegar.

5

Transfer mixture to a greased 9x13 inch casserole dish. Cover with aluminum foil.

6

Bake for 25 minutes. Remove foil, sprinkle cheese on top, and bake for an additional 15 minutes or until cheese is bubbly and golden.

7

Remove from oven and let it cool slightly before serving.

Kitchen Tools

  • Large skillet
  • 9x13 inch casserole dish
  • Wooden spoon
  • Sharp knife

Chef's Tips

For deeper flavor, use homemade chicken broth.
Feel free to add sautéed mushrooms for extra umami.

Troubleshooting

If the casserole is too dry, add a splash of broth before serving.
If the cheese isn't melting well, broil for a few minutes.

Recipe Variations

Use turkey instead of chicken for a leaner option.
Add spinach or kale for additional greens.

Healthy Alternatives

Use whole wheat orzo for added fiber.
Substitute cream cheese for a lighter cheese option.

Serving Suggestions

Serve with a side salad and crusty bread.
Pair with a glass of white wine for a complete meal.

Nutrition Facts

425
Calories
28g
Protein
42g
Carbs
16g
Fat
2g
Fiber
3g
Sugar
890mg
Sodium
75mg
Cholesterol

Dietary Info

Gluten-free (if using gluten-free orzo)
Can be made dairy-free with non-dairy cheese

Garnish Ideas

Top with fresh parsley or chives for a pop of color.
Serve with crispy fried onions for added crunch.

Storage

Store leftovers in an airtight container in the fridge for up to 3 days.
Reheat the casserole in the oven for best results.

Leftover Ideas

Transform leftovers into a soup by adding extra broth.
Use in a wrap or sandwich for a quick lunch option.

Common Mistakes to Avoid

Cooking orzo too long can make it mushy.
Not allowing the casserole to cool slightly can make it hard to serve.

Frequently Asked Questions

Can I make this casserole ahead of time?

Yes, you can assemble it a day before and refrigerate it. Just bake it when you're ready.

What can I substitute for Gruyère cheese?

You can use Swiss cheese or mozzarella as alternatives.

Is this recipe suitable for meal prepping?

Absolutely! This casserole stores well and makes for great leftovers.

Can I add more vegetables to this dish?

Yes, feel free to add any vegetables such as bell peppers or zucchini.

How should I store leftovers?

Keep them in an airtight container in the fridge for up to 3 days.

What should I serve with this casserole?

A simple side salad or roasted vegetables would complement this dish well.

Can I use raw chicken in this recipe?

No, you should cook the chicken beforehand to ensure it's fully cooked.

Reviews

Sarah M
Mar 16, 2026
This casserole is a game changer! So flavorful and easy to prepare.
John D
Mar 14, 2026
Very good, but I think it needed more seasoning.
Emily R
Mar 6, 2026
My family loved it! Will definitely make again.
Michael K
Feb 20, 2026
Great recipe! Didn't have orzo, so used rice instead.
Jessica T
Mar 4, 2026
Perfect comfort food for a cozy night in.
Tom L
Mar 3, 2026
It was decent, but I found it a bit dry.
Ava C
Mar 15, 2026
Loved the combination of flavors. So comforting!
Chris B
Feb 25, 2026
This has become a staple in our home. Super easy to make!
Alex G
Mar 5, 2026
Really tasty! I added some mushrooms for a twist.
Sophie W
Feb 24, 2026
Fantastic recipe, I'll be sharing it with all my friends!
Daniel J
Feb 25, 2026
Good flavor, but I wished it had more cheese.
Helen S
Feb 23, 2026
So easy and delicious! Perfect weeknight meal.
Liam T
Mar 19, 2026
Tasty dish, but it took longer to cook than expected.
Emma P
Mar 21, 2026
Delicious comfort food. Everyone loved it!
Noah R
Mar 16, 2026
Very good, but will add more onions next time.
Grace H
Feb 25, 2026
This recipe is a winner! So creamy and flavorful.
Oliver M
Mar 18, 2026
It was okay, but I've had better casseroles.
Zoe F
Mar 4, 2026
I really loved this! My kids ate it all!
Jack L
Mar 11, 2026
Good flavor profile but a little heavy for my taste.
Mia K
Mar 18, 2026
Absolutely loved it! Will definitely make again.
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