French Onion Chicken Orzo Casserole

If you’re looking to impress your family with a comforting dish, the French Onion Chicken Orzo Casserole is a delightful option. This recipe combines the rich flavors of French onion soup with tender orzo pasta and shredded chicken, making it the perfect meal for a chilly evening.

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Why You’ll Love This French Onion Chicken Orzo Casserole

This French Onion Chicken Orzo Casserole is a comforting and aromatic dish that brings warmth and joy to any dinner table. Its creamy, cheesy texture combined with the deep, savory notes of sautéed onions make it a hearty and satisfying meal. Ideal for weeknight dinners or special occasions, this casserole is not only delicious but also incredibly easy to prepare.

Delicious French Onion Chicken Orzo Casserole with cheese and herbs
Lucy C. Frakes

French Onion Chicken Orzo Casserole

A cozy, one-pan casserole that combines the caramelized richness of French onion soup with tender orzo pasta and shredded chicken. Creamy, cheesy, and irresistibly comforting, perfect for chilly nights or family dinners.
Prep Time 15 minutes
Cook Time 25 minutes
Total Time 40 minutes
Servings: 6 servings
Course: Dinner, Main Course
Cuisine: American, French-inspired
Calories: 450

Ingredients
  

  • 2 tbsp unsalted butter
  • 1 tbsp olive oil
  • 2 large yellow onions, thinly sliced
  • 1 tsp sugar
  • 1/2 tsp salt
  • 3 cloves garlic, minced
  • 1 1/2 cups orzo pasta
  • 2 cups cooked shredded chicken
  • 1/2 tsp dried thyme
  • 1/4 tsp black pepper
  • 2 cups low-sodium chicken broth
  • 1 cup heavy cream or half and half
  • 1 1/2 cups shredded mozzarella cheese
  • 1/2 cup grated Parmesan cheese
  • 1/2 tsp Worcestershire sauce or balsamic glaze (optional)

Equipment

  • large skillet
  • wooden spoon
  • chef’s knife
  • Cutting board
  • measuring cups and spoons

Method
 

  1. In a large skillet, heat butter and olive oil over medium heat. Add sliced onions, sugar, and salt. Sauté until golden and caramelized, about 12–15 minutes.
  2. Add minced garlic and cook for 1 minute until fragrant. Stir in the orzo pasta, coating it in the onion mixture.
  3. Pour in chicken broth and heavy cream. Add shredded chicken, thyme, and black pepper. Stir well and bring to a gentle simmer. Cover and cook on low for 10 minutes, stirring occasionally, until orzo is tender.
  4. Remove from heat and stir in mozzarella and Parmesan cheese. Add Worcestershire sauce or balsamic glaze if desired. Mix until cheese melts and sauce is creamy.
  5. Let the casserole rest for 5 minutes before serving. Garnish with parsley or fresh thyme if desired.

Nutrition

Calories: 450kcalCarbohydrates: 55gProtein: 30gFat: 20gSaturated Fat: 10gPolyunsaturated Fat: 2gMonounsaturated Fat: 6gCholesterol: 95mgSodium: 650mgPotassium: 320mgFiber: 2gSugar: 6gVitamin A: 480IUVitamin C: 5mgCalcium: 210mgIron: 2.1mg

Notes

For a lighter version, use half-and-half or plant-based cream instead of heavy cream. Whole wheat orzo adds extra fiber, and you can swap chicken for turkey, lentils, or mushrooms for a vegetarian take. Add a splash of balsamic glaze or Worcestershire sauce for depth. Serve with salad and crusty bread for a complete meal.

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Using just one pot and common pantry ingredients, you can create a dish that’s both flavorful and filling. Plus, the versatility in ingredients allows for personal touches to cater to your family’s taste preferences.

Ingredients for French Onion Chicken Orzo Casserole

To create this creamy casserole, you will need the following ingredients:

  • 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)

Ingredient Notes

When preparing your French Onion Chicken Orzo Casserole, consider these substitutions for a healthier or family-friendly meal:

  • Replace heavy cream with half and half or plant-based cream to reduce calories and fat.
  • Opt for whole wheat orzo to add fiber and nutrients.
  • If you prefer a non-chicken option, shredded rotisserie chicken can be substituted with cooked shredded turkey for a healthier protein alternative.
  • If you need to avoid Worcestershire sauce, consider using a splash of apple cider vinegar or lemon juice for a similar tangy taste.
  • For a vegetarian twist, replace the chicken with sliced mushrooms or lentils.

Step-by-Step Instructions

Step 1 – Sauté the Onions

In a large skillet, heat the unsalted butter and olive oil over medium heat. Add the thinly sliced onions, sugar, and salt. Sauté the onions until they are golden brown and caramelized, stirring occasionally. This should take about 12-15 minutes. The sugar helps to enhance the natural sweetness of the onions.

Step 2 – Add Garlic and Orzo

Once the onions are caramelized, stir in the minced garlic and cook for an additional minute until fragrant. Add the orzo pasta and stir well to coat it with the onion mixture.

Step 3 – Combine Remaining Ingredients

Next, pour in the low-sodium chicken broth and heavy cream, followed by the shredded chicken, dried thyme, and black pepper. Stir all the ingredients together and bring the mixture to a gentle simmer. Reduce the heat to low and cook, covered, for about 10 minutes until the orzo is tender, stirring occasionally to prevent sticking.

Step 4 – Add Cheeses

Once the orzo is cooked to your desired tenderness, remove from heat and stir in the shredded mozzarella and grated Parmesan cheese. Add Worcestershire sauce or balsamic glaze if you’re using any. Mix until the cheese is melted and the casserole is creamy.

Pro Tips for Success

  1. Caramelize the onions well: Take your time with the onion caramelization as it enhances the flavor. Burnt onions can ruin the dish.
  2. Don’t skip the cheese: The mozzarella and Parmesan add creaminess and depth to the dish, so include both.
  3. Let it rest: Allow the casserole to sit for a few minutes post-cooking. This makes it easier to serve and enhances the flavor as it settles.
  4. Experiment with herbs: Fresh herbs like thyme or parsley can be added for a fresh burst of flavor.
  5. Serve fresh: This dish is best served freshly made, but can be reheated easily for leftovers.

Flavor Variations

  1. Add Vegetables: Consider adding broccoli, spinach, or bell peppers to the casserole for added color and nutrition.
  2. Spicy Touch: A pinch of red pepper flakes or a dash of hot sauce can elevate this dish and add warmth.
  3. Herb Infusion: Incorporate dried herbs like rosemary or Italian seasoning for an aromatic twist.
  4. Switch the Cheese: Experiment with different cheese types like gouda or cheddar for unique tastes.

Serving Suggestions

Serve your French Onion Chicken Orzo Casserole with a simple green salad dressed in light vinaigrette. Crusty bread or garlic bread is also an excellent pairing for mopping up the cheesy goodness. For a complete meal, consider adding a side of roasted vegetables or a blend of seasonal veggies sautéed in olive oil.

Storage and Freezing Instructions

To store leftover casserole, let it cool completely before transferring to an airtight container. It can be kept in the refrigerator for 3-4 days. For longer storage, freeze the dish for up to 3 months. To reheat, thaw the casserole in the refrigerator overnight and then warm it in the oven or microwave, adding a splash of broth if needed to regain its creamy consistency.

Nutrition Facts (Per Serving)

NutrientAmount
Calories450
Carbohydrates55g
Fat20g
Fiber2g
Protein30g
Sodium650mg

FAQ About French Onion Chicken Orzo Casserole

Can I make this dish ahead of time?

Yes, you can prepare the casserole up to the baking step, cover it, and store it in the refrigerator for up to 24 hours. Just increase the cooking time if serving from cold.

Can I use fresh onions instead of yellow onions?

While yellow onions offer a sweet flavor when caramelized, you can use white or even red onions as alternatives. Each type will bring a slightly different flavor to the dish.

Is this casserole suitable for freezing?

Absolutely! The French Onion Chicken Orzo Casserole freezes well. Make sure to cool it fully before transferring it to a freezer-safe container. Reheat in the oven or microwave after thawing.

Can I make this recipe vegetarian?

Yes, replace the chicken with an equivalent amount of cooked lentils, mushrooms, or chickpeas, and use vegetable broth instead of chicken broth to make this dish vegetarian-friendly.

How can I enhance the flavor?

A splash of sherry, balsamic vinegar, or even a dollop of Dijon mustard can add an exciting tang and depth to the casserole. Don’t be afraid to get creative!

Final Thoughts

The French Onion Chicken Orzo Casserole is an ideal dish for families looking for nourishing, hearty comfort food. With its rich flavors and creamy textures, it’s sure to be a hit at the dinner table. Whether you stick to the original recipe or put your spin on it, every bite is a delightful experience. Try it out tonight, and enjoy the comforting embrace of this classic casserole!