Description

This French Onion Chicken Orzo Casserole is a comforting, hearty dish combining caramelized onions, tender shredded chicken, and creamy orzo pasta baked with a blend of mozzarella and Parmesan cheeses. It features rich flavors enhanced by garlic, thyme, and optional Worcestershire sauce, creating a delicious and satisfying meal perfect for family dinners.

Ingredients

Scale

For the Caramelized Onions

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

Main Ingredients

1 1/2 cups orzo pasta
2 cups cooked shredded chicken (rotisserie chicken 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 lighter option)
1 1/2 cups shredded mozzarella cheese (divided)
1/2 cup grated Parmesan cheese

Optional

1/2 teaspoon Worcestershire sauce or balsamic glaze (for added depth)

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Instructions

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 to 25 minutes, stirring occasionally, until the onions are deeply golden and caramelized. Stir in the minced garlic during the last 1 to 2 minutes to soften and release its aroma.
Add Orzo and Chicken: Stir in the orzo pasta and cook for 2 minutes, allowing it to lightly toast and absorb flavors. Add the shredded chicken, dried thyme, black pepper, and Worcestershire sauce or balsamic glaze if using. Mix well to combine all ingredients evenly.
Pour in Liquids: Add the low-sodium chicken broth and heavy cream to the skillet. Bring the mixture to a gentle simmer. Reduce the heat to low, cover the pan, and let it cook for 8 to 10 minutes, stirring occasionally, until the orzo is tender and has absorbed most of the liquid.
Add Cheese: Stir in 1 cup of the shredded mozzarella and the grated Parmesan cheese. Mix thoroughly until the cheeses melt and the sauce becomes creamy and smooth.
Bake the Casserole: Preheat your oven to 375°F (190°C). Sprinkle the remaining 1/2 cup mozzarella evenly over the top of the casserole. Place the skillet or casserole dish in the oven and bake uncovered for 10 to 15 minutes until the top is bubbly and golden brown.
Serve: Remove the casserole from the oven and let it rest for 5 to 10 minutes before serving. Optionally, garnish with fresh thyme or parsley for a bright, fresh finish.

Notes

You can substitute half and half for heavy cream to reduce fat content while maintaining creaminess.
Using rotisserie chicken saves time and adds great flavor, but any cooked shredded chicken will work.
Make sure to stir occasionally during the caramelization process to prevent burning the onions.
For a deeper flavor, Worcestershire sauce or balsamic glaze is optional but highly recommended.
This dish is best served fresh but can be stored in the refrigerator for up to 3 days and reheated gently.