French Onion Chicken Orzo Casserole

There’s something utterly comforting about a casserole, don’t you think? It conjures up warm memories of family dinners where everyone gathers around the table, a single dish brings everyone together, and the last bit is fought over in the best of spirits. This French Onion Chicken Orzo Casserole is right at the top of my comfort-food list, and I can’t wait to share this gem with you. It marries the richness of caramelized onions with tender chicken and the heartiness of orzo—like a warm hug in a bowl!

Let me tell you, it’s not just a delightful dish; it’s a culinary masterpiece that beautifully captures the essence of French onion soup as you know it but in casserole form. Most of the magic happens in the caramelization of the onions, a process that’s simple yet transformative. Trust me when I say, this casserole can turn a weekday dinner into a special occasion.

Why you’ll love this recipe

Imagine the savory aroma of sweet, caramelized onions mingling with melty cheese and tender pasta wafting through your home. That’s exactly what you’re in for with this French Onion Chicken Orzo Casserole. Its layered flavors are as comforting as your favorite childhood memories, yet elegant enough to impress dinner guests.

What sets this recipe apart? Well, it brings those classic French flavors right to your dining table without the fuss. You get the complexity of a traditionally slow-cooked dish, but in a fraction of the time! Plus, it’s a one-pot wonder, making clean-up a breeze—a win-win! You can whip this up on a busy weekday and still enjoy a hearty meal that feels indulgent and satisfying.

Gather these ingredients

Let’s get into what you’ll need for this delightful dish. Nothing extravagant here, just wholesome, simple ingredients:

• 2 tablespoons unsalted butter: For a velvety flavor base.
• 1 tablespoon olive oil: A touch of richness to complement the butter.
• 2 large yellow onions (thinly sliced): These are the stars of the show; they caramelize beautifully.
• 1 teaspoon sugar: This helps to deepen the sweetness of the onions as they cook.
• 1/2 teaspoon salt: Never underestimate the magic of salt; it enhances flavor.
• 3 garlic cloves (minced): Because every great dish begins with garlic!
• 1 1/2 cups orzo pasta: The pasta brings heartiness, and it absorbs all those wonderful flavors.
• 2 cups cooked shredded chicken: Rotisserie chicken is a lifesaver here—easy and packed with flavor.
• 1/2 teaspoon dried thyme: A sprinkle of herbaceous goodness.
• 1/4 teaspoon black pepper: Just enough kick.
• 2 cups low-sodium chicken broth: We’re keeping it healthy and flavorful.
• 1 cup heavy cream (or half and half for a lighter option): This adds creaminess that’ll make you swoon.
• 1 1/2 cups shredded mozzarella cheese: The gooey goodness that ties everything together.
• 1/2 cup grated Parmesan cheese: Adds that nutty kick of flavor.
• Optional: 1/2 teaspoon Worcestershire sauce or balsamic glaze: For those who want an extra layer of richness and depth.

Preparing French Onion Chicken Orzo Casserole

Ready to dive in? Follow my lead as we create this masterpiece step by step.

1. 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. Now, this part is crucial—you’ll want to cook them for 20–25 minutes while stirring occasionally until the onions are deeply golden and fragrant. Trust me, those caramelized bits are pure gold. Stir in the minced garlic during the last 1–2 minutes for that aromatic punch.

2. Add Orzo and Chicken: Toss the orzo into the skillet and let it toast lightly for about 2 minutes. That little toasting step really elevates the flavor! Next, add your shredded chicken, thyme, black pepper, and Worcestershire sauce if you’re feeling adventurous. Mix everything so it’s well combined.

3. Pour in Liquids: Time to add the chicken broth and cream. Bring this beauty to a gentle simmer, reducing the heat to low. Cover it and let it work its magic for 8–10 minutes, stirring occasionally until the orzo is plump and tender. Can you smell that?

4. Add Cheese: Next, stir in 1 cup of mozzarella and the Parmesan cheese. Mix until everything is melted and creamy. Seriously, you might just want to dive right in, but hold tight!

5. Bake the Casserole: Preheat your oven to 375°F (190°C). Sprinkle the remaining 1/2 cup of mozzarella over the top for that golden finish and pop it in the oven uncovered. Bake for 10–15 minutes until it’s bubbly and beautifully golden on top.

6. Serve: Let it rest for 5–10 minutes before serving; this allows the flavors to settle and come together. If you like, garnish with fresh thyme or parsley for a pop of color.

Best way to enjoy it

When I serve this casserole, I often pair it with a crisp side salad—something light to balance the richness of the dish. A simple arugula salad with lemon vinaigrette works wonders! You could also throw in some crusty bread for a delightful scoop.

And here’s a tip: this casserole is delightful on its own but also opens the door to creative toppings. Think crispy fried onions or even a sprinkle of fresh herbs like chives after it comes out of the oven. Endless possibilities await!

Storage and reheating tips

Let’s talk leftovers, shall we? This casserole keeps like a champ! Store any extras in an airtight container in the fridge for up to 4 days. To reheat, simply pop it back in the oven at 350°F (175°C) until hot, or use the microwave if you’re in a hurry. Honestly, the flavors only get better with a day or two in the fridge!

Feel free to freeze any extras too. Just make sure to cool it completely first, then transfer to a freezer-safe container. It’ll keep well for about 3 months, perfect for when you need a quick meal more than a busy day!

Helpful cooking tips

I can’t stress this enough: don’t rush the onion caramelization process. It’s where all the flavor compounds come alive! If you’re short on time, try slicing the onions in advance. Also, using rotisserie chicken not only speeds up the process but adds a depth of flavor that’s hard to replicate.

Creative Twists

Want to switch things up? Consider adding some diced mushrooms when you sauté the onions for an earthy flavor. A sprinkle of Italian seasoning can also take this casserole to new heights. And if you’re feeling adventurous, throw in some spinach or kale near the end for a boost of color and nutrition!

Your questions answered

1. Can I use other pasta types? Absolutely! You can swap the orzo for any small pasta like ditalini or even rice. Just adjust the cooking times accordingly.
2. How spicy is this dish? It’s a mild dish, but feel free to increase the black pepper or add red pepper flakes if you desire some heat.
3. Can I make this vegetarian? Definitely! Just leave out the chicken and substitute vegetable broth for a fully vegetarian dish. You could also add more veggies!
4. What cheese can I substitute? Gruyère or cheddar can work beautifully in place of mozzarella for a different flavor profile.
5. What’s the best way to serve it? Pair it with a light salad or crispy bread, and you’re golden!

As you can see, this casserole is not just about filling your belly; it’s about creating a warm experience that brings together family and friends. With rich flavors and easy steps, it’s the kind of comfort food that invites you to gather around and share stories. So why not give it a whirl? I hope you find joy in making it as much as I do and consider trying out your own variations! Can’t wait to hear how yours turns out!

Use Your Leftovers

Reduce food waste by making these recipes with your leftover ingredients:

Garlic Parmesan Chicken and Potatoes

♻️ Uses leftover parmesan cheese40%

One Pot Creamy Garlic Pasta

♻️ Uses leftover parmesan cheese40%

Print Recipe

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French Onion Chicken Orzo Casserole

Difficulty: Intermediate Prep Time Cook Time Rest Time Total Time 55 hrs

Cooking Temp: 375  F Servings: 6 Estimated Cost: $ 12 Calories: 450

Description

This French Onion Chicken Orzo Casserole combines caramelized onions, tender chicken, and orzo pasta for a warm and hearty dish that feels like a hug in a bowl. It's easy to make and perfect for weeknight dinners.

Ingredients

Scale

1/2x 1x 2x 3x

Main Ingredients

• 2 tablespoons unsalted butter (For a velvety flavor base.)
• 1 tablespoon olive oil (A touch of richness to complement the butter.)
• 2 large yellow onions (Thinly sliced.)
• 1 teaspoon sugar (To deepen the sweetness of the onions.)
• ¹⁄₂ teaspoon salt (Enhances flavor.)
• 3 cloves garlic (Minced.)
• 1 ¹⁄₂ cups orzo pasta (Absorbs flavors.)
• 2 cups cooked shredded chicken (Rotisserie chicken recommended.)
• ¹⁄₂ teaspoon dried thyme (Herbaceous flavor.)
• ¹⁄₄ teaspoon black pepper (For a little kick.)
• 2 cups low-sodium chicken broth (For a healthy option.)
• 1 cup heavy cream (Or half and half for a lighter option.)
• 1 ¹⁄₂ cups shredded mozzarella cheese (For gooey goodness.)
• ¹⁄₂ cup grated Parmesan cheese (Adds nutty flavor.)
• ¹⁄₂ teaspoon Worcestershire sauce (Optional for added richness.)

Instructions

Cooking Steps

1. Caramelize the Onions

   Melt the butter and olive oil over medium heat. Add sliced onions, sugar, and salt. Cook for 20–25 minutes, stirring occasionally until golden and fragrant. Stir in garlic during the last 1–2 minutes.
   Mark as complete

2. Add Orzo and Chicken

   Toss the orzo into the skillet and toast lightly for about 2 minutes. Add shredded chicken, thyme, black pepper, and Worcestershire sauce. Mix to combine.
   Mark as complete

3. Pour in Liquids

   Add chicken broth and cream. Bring to a simmer. Cover and cook for 8–10 minutes, stirring occasionally until the orzo is tender.
   Mark as complete

4. Add Cheese

   Stir in 1 cup of mozzarella and Parmesan cheese until melted and creamy.
   Mark as complete

5. Bake the Casserole

   Preheat oven to 375°F (190°C). Sprinkle remaining mozzarella on top and bake for 10–15 minutes until bubbly and golden.
   Mark as complete

6. Serve

   Let rest for 5–10 minutes before serving. Garnish with fresh thyme or parsley if desired.
   Mark as complete

Nutrition Facts

Servings 6

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Amount Per Serving

Calories 450kcal

% Daily Value *

Total Fat 30g47%

Saturated Fat 16g80%

Trans Fat 0g

Cholesterol 90mg30%

Sodium 800mg34%

Potassium 500mg15%

Total Carbohydrate 30g10%

Dietary Fiber 2g8%

Sugars 3g

Protein 30g60%

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Vitamin A 500 IU

Vitamin C 2 mg

Calcium 300 mg

Iron 2 mg

Vitamin D 0 IU

Vitamin E 0 IU

Vitamin K 5 mcg

Thiamin 0.3 mg

Riboflavin 0.4 mg

Niacin 4 mg

Vitamin B6 0.5 mg

Folate 25 mcg

Vitamin B12 0 mcg

Biotin 0 mcg

Pantothenic Acid 1 mg

Phosphorus 400 mg

Iodine 0 mcg

Magnesium 30 mg

Zinc 3 mg

Selenium 30 mcg

Copper 0.2 mg

Manganese 0.5 mg

Chromium 0 mcg

Molybdenum 0 mcg

Chloride 0 mg

* Percent Daily Values are based on a 2,000 calorie diet. Your daily value may be higher or lower depending on your calorie needs.

Note

For added richness, consider garnishing with fresh herbs or serving with a side salad.

Keywords: casserole, French onion, chicken, orzo, comfort food