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The Best Easy & Creamy Garlic Chicken and Vegetables (One-Pan!)

A beautiful plate of homemade Creamy Garlic Chicken and Vegetables and sauce, served over a bed of fluffy quinoa for a healthy meal.

A creamy and comforting one-skillet meal featuring chicken and roasted vegetables in a rich garlic pan sauce. The recipe starts by roasting broccoli florets and butternut squash until tender. Boneless, skinless chicken is then seared in a large, oven-safe skillet. A flavorful pan sauce is created in the same skillet with onions, garlic, chicken broth, and herbs, and then thickened with a half-and-half and cornstarch slurry. The seared chicken and roasted vegetables are returned to the skillet and finished in the oven.

Ingredients

  • 2 cups fresh broccoli florets
  • 2 cups cubed butternut squash
  • 2 Tablespoons olive oil, divided
  • 1.5 pounds boneless, skinless chicken thighs or breasts
  • 1 Tablespoon unsalted butter
  • Salt & freshly ground black pepper
  • 1/4 cup diced onion
  • 7–8 garlic cloves, minced
  • 2 teaspoons dried parsley
  • 1 and 1/4 cups chicken broth
  • 3/4 cup half-and-half or whole milk
  • 1 Tablespoon cornstarch
  • Chopped fresh parsley, for garnish (optional)

Instructions

  1. Preheat the oven to 400°F. Line a large baking sheet with parchment paper.
  2. Roast the Vegetables: Spread the broccoli and butternut squash in a single layer on the baking sheet. Drizzle with 1 tablespoon of olive oil and sprinkle with salt and pepper. Roast for 20 minutes.
  3. Brown the Chicken: While the vegetables roast, heat the remaining 1 tablespoon of olive oil in a large 12-inch oven-safe skillet over medium heat. Season the chicken with salt and pepper, place it in the skillet, and cook for 4 minutes on each side until lightly browned. Transfer the chicken to a plate.
  4. Make the Pan Sauce: Add the butter to the hot pan. Add the onion, garlic, dried parsley, 1/4 teaspoon of salt, and 1/4 teaspoon of pepper. Cook and stir, scraping up any browned bits from the bottom of the skillet.
  5. Pour in the chicken broth and let the sauce simmer for 5 minutes.
  6. In a small bowl, whisk together the half-and-half and cornstarch to create a slurry. Slowly pour the slurry into the skillet, stirring to combine. Cook for 1 more minute until it thickens.
  7. Finish the Dish: Add the seared chicken and the roasted vegetables to the skillet, stirring to coat everything in the sauce.
  8. Transfer the entire skillet to the oven and bake for 5–10 minutes, or until the chicken is cooked through (to at least 165°F).
  9. Garnish with fresh parsley before serving, if desired.

Notes

  • Using a large, oven-safe skillet (like a cast iron pan) or a Dutch oven is essential for this recipe, as it goes from the stovetop to the oven.
  • The chicken is only partially cooked on the stovetop and finishes cooking in the oven to ensure it stays juicy.
  • The sauce is thickened with a cornstarch slurry, which is a simple way to create a creamy consistency without a traditional roux.
  • Leftovers can be stored in the refrigerator for a few days.
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