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Creamy Chicken Mushroom Spinach Skillet

A warm, comforting one-pan dish featuring seared chicken, mushrooms, spinach, and a silky cream sauce, perfect for weeknights or gatherings.
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Prep Time 15 minutes
Cook Time 20 minutes
Total Time 35 minutes
Servings: 4 servings
Course: Dinner, Main Course
Cuisine: American, Comfort Food
Calories: 450
Ingredients Method Notes

Ingredients
  

Main Ingredients
  • 1.5 pounds boneless, skinless chicken breasts or thighs, pounded to even thickness Use thighs for juicier results.
  • 2 tablespoons olive oil or unsalted butter Butter adds nuttiness.
  • 8 ounces cremini or white mushrooms, sliced Swap for shiitake for a deeper flavor.
  • 3 cloves garlic, minced Or 1 teaspoon garlic powder in a pinch.
  • 1 small onion or 2 shallots, finely chopped Shallots are softer and sweeter.
  • 0.5 cup chicken broth or white wine Wine adds brightness.
  • 0.75 cup heavy cream or half-and-half Use Greek yogurt thinned with milk for a tangy healthy option.
  • 2 cups baby spinach, lightly packed Swap with kale for a stronger green.
  • 0.5 cup grated Parmesan or Pecorino Romano cheese Omit for dairy-free versions, replace with nutritional yeast.
  • 1 teaspoon dried thyme or 1 tablespoon fresh thyme leaves Rosemary is a lovely alternative.
  • Optional: red pepper flakes and lemon zest For heat and brightness.

Method
 

Preparation
  1. Pat the chicken dry and season generously with salt and pepper on both sides.
  2. Heat a large skillet over medium-high heat with olive oil and/or butter.
  3. When the fat is shimmering, add the chicken. Sear 3-4 minutes per side until golden brown and nearly cooked through.
  4. Remove chicken to a plate and tent with foil.
Cooking
  1. In the same skillet, add a touch more oil if needed and reduce heat to medium.
  2. Add the onions or shallots and cook until translucent, about 2 minutes.
  3. Stir in the mushrooms and let them sit for a minute before stirring to caramelize them.
  4. Cook until mushrooms are browned, about 5-6 minutes.
  5. Add the garlic and thyme, stirring until fragrant, about 30 seconds.
  6. Pour in the chicken broth or wine to deglaze the pan, scraping up browned bits.
  7. Let the liquid reduce by half.
  8. Lower the heat and stir in the heavy cream. Simmer gently until slightly thickened, about 2-3 minutes.
  9. Taste and season with salt, pepper, and red pepper flakes if desired.
  10. Return the chicken to the skillet, nestling it into the sauce.
  11. Add the spinach and sprinkle the grated Parmesan over top.
  12. Cover briefly until the spinach wilts and the chicken finishes cooking through—about 2-3 minutes.
Serving
  1. Finish with a squeeze of fresh lemon juice or a sprinkle of lemon zest.
  2. Serve straight from the skillet.

Notes

Cool leftover skillet completely, then store in an airtight container in the refrigerator for up to 3 days. Reheat gently in a skillet over low heat with a splash of broth or milk to revive the sauce.