Dive into Comfort with French Onion Chicken Orzo Casserole
Ever walked into a kitchen and been hit by the sweet smell of caramelized onions? It’s like a warm hug for your senses! This French Onion Chicken Orzo Casserole takes that cozy aroma and wraps it around tender orzo and succulent chicken, creating a meal that feels both indulgent and homely. The best part? It’s a one-pan wonder that truly knows how to deliver comfort without the mountain of dishes afterward.
Why Make This Recipe?
Who doesn’t appreciate an easy cleanup? The best part about this casserole is that it’s all cooked in one pan! Plus, it’s budget-friendly, especially if you grab a rotisserie chicken. Your family will adore it, and you’ll get some serious bragging rights at the dinner table. Throw in a couple of glasses of wine, and you have yourself a feast! 🍷
Ingredients
You don’t need fancy stuff — just these basics!
- 2 tablespoons unsalted butter
- 1 tablespoon olive oil
- 2 large yellow onions (thinly sliced)
- 1 teaspoon sugar
- 1/2 teaspoon salt
- 3 garlic cloves (minced)
- 1 1/2 cups orzo pasta
- 2 cups cooked shredded chicken (rotisserie works well)
- 1/2 teaspoon dried thyme
- 1/4 teaspoon black pepper
- 2 cups low-sodium chicken broth
- 1 cup heavy cream (or half and half for a lighter option)
- 1 1/2 cups shredded mozzarella cheese
- 1/2 cup grated Parmesan cheese
- Optional: 1/2 teaspoon Worcestershire sauce or balsamic glaze (for added depth)
Directions
Caramelize the Onions
In a large oven-safe skillet or Dutch oven, melt the butter and olive oil over medium heat. Add the sliced onions, sugar, and salt. Cook for 20–25 minutes, stirring occasionally, until the onions are deeply golden and caramelized. Stir in the minced garlic during the last 1–2 minutes.Add Orzo and Chicken
Stir in the orzo and cook for 2 minutes, allowing it to lightly toast. Add the shredded chicken, thyme, pepper, and Worcestershire sauce if using. Mix well.Pour in Liquids
Add the chicken broth and cream. Bring to a gentle simmer. Reduce heat to low, cover, and let it cook for 8–10 minutes, stirring occasionally, until the orzo is tender.Add Cheese
Stir in 1 cup mozzarella and the Parmesan cheese. Mix until melted and creamy.Bake the Casserole
Preheat the oven to 375°F (190°C). Sprinkle the remaining 1/2 cup mozzarella over the top. Bake uncovered for 10–15 minutes until bubbly and golden on top.Serve
Let it rest for 5–10 minutes before serving. Garnish with fresh thyme or parsley if desired.

How to Make French Onion Chicken Orzo Casserole (Overview)
Picture this: you start with beautifully caramelized onions—heavenly, right? Then you add in some toasty orzo and shredded chicken like you’re building a cozy little nest. Pour in a splash of cream and broth, letting everything mingle until you have something that can only be described as creamy bliss. Top it with gooey cheese and pop it in the oven. Pro tip: Don’t skip toasting the garlic—it adds a whole new level of yum!
How to Serve French Onion Chicken Orzo Casserole
This casserole shines all on its own, but serving it with a simple green salad can bring a lovely crunch and color. Imagine the contrast of creamy orzo against fresh, zesty greens—delicious! Consider topping it with crispy fried onions or crunchy breadcrumbs for an extra kick. The aromas wafting from the oven will have everyone eagerly awaiting their portions.
How to Store French Onion Chicken Orzo Casserole
Leftovers? Yes, please! This casserole keeps in the fridge for about 3–4 days. Just store it in an airtight container. Make-ahead tip: You can prepare everything until the baking step and pop it in the fridge overnight. Reheat in the oven or microwave—just give it a stir beforehand.
Tips to Make French Onion Chicken Orzo Casserole
- Caramelization is key: Take your time with the onions for that deep flavor.
- Feel free to swap out ingredients: Have leftover veggies? Toss them in for extra nutrition and flavor!
- Check the doneness: Since every oven is different, keep an eye on it to avoid burning that lovely cheese topping.
Variation
Want to switch it up? No problem! You can easily make this casserole vegetarian by substituting shredded chicken for cooked lentils or mushrooms. Add a splash of balsamic glaze for an unexpected twist that’ll make your taste buds dance!
FAQs
Can I use pasta other than orzo?
Absolutely! Any small pasta shape like ditalini or small shells will work just fine.
How do I freeze this casserole?
Once cooled, wrap it tightly in plastic wrap and foil. It should last for about 2-3 months in the freezer.
What can I use instead of heavy cream?
You can swap it for half and half or even coconut milk for a dairy-free version, but keep in mind the flavor will shift a bit!
📌 Pin this recipe for your next cozy dinner night!

French Onion Chicken Orzo Casserole
Ingredients
Method
- In a large oven-safe skillet or Dutch oven, melt the butter and olive oil over medium heat.
- Add the sliced onions, sugar, and salt. Cook for 20–25 minutes, stirring occasionally, until the onions are deeply golden and caramelized.
- Stir in the minced garlic during the last 1–2 minutes.
- Stir in the orzo and cook for 2 minutes, allowing it to lightly toast.
- Add the shredded chicken, thyme, pepper, and Worcestershire sauce if using. Mix well.
- Add the chicken broth and cream. Bring to a gentle simmer.
- Reduce heat to low, cover, and let it cook for 8–10 minutes, stirring occasionally, until the orzo is tender.
- Stir in 1 cup mozzarella and the Parmesan cheese. Mix until melted and creamy.
- Preheat the oven to 375°F (190°C).
- Sprinkle the remaining 1/2 cup mozzarella over the top.
- Bake uncovered for 10–15 minutes until bubbly and golden on top.
- Let it rest for 5–10 minutes before serving.
- Garnish with fresh thyme or parsley if desired.






