21 Day Fix One Skillet Caprese Chicken

  • Author: Nancylynn Sicilia
  • Prep Time: 10 minutes
  • Cook Time: 20 minutes
  • Total Time: 30 minutes
  • Yield: 4 servings 1x
  • Category: Dinner
  • Method: Stove Top
  • Cuisine: Italian



  • 2 tsp extra-virgin olive oil
  • olive oil cooking spray
  • 1 lb. boneless skinless chicken breasts
  • kosher salt
  • black pepper
  • 1/4 c. balsamic vinegar
  • 2 cloves garlic, minced
  • 1 pint grape tomatoes, halved
  • 1/4 red onion, diced
  • 2 tbsp. shredded basil
  • 2/3 cup of shredded mozzarella cheese
  • 4 cups of cooked spaghetti squash


  1. Spray a large skillet with olive oil and season chicken with salt and pepper. Cook over medium heat until golden and cooked through, about 6 minutes per side. Transfer to a plate.
  2. Lower heat to medium low and add the two teaspoons of olive oil to the pan. Add onion and stir for a few minutes or until they begin soften. Next, add garlic and stir for 1 minute or until fragrant.
  3. Finally, add tomatoes and balsamic vinegar. Sprinkle with salt and let simmer until soft, about 4-5 minutes.
  4. Stir in a tablespoon of basil. Return chicken to skillet and nestle in tomatoes. Top evenly with mozzarella and cover with lid to melt cheese.
  5. Spoon tomatoes and chicken and sauce over spaghetti squash and garnish with remaining basil.
  6. Enjoy!


makes 4 servings

21 Day Fix: 1 1/2 GREEN, 1 RED, 1/2 BLUE, 1/2 tsp per serving

WW Freestyle: 3 points per serving


  • Serving Size: 1/4 of skillet over 1 cup of spaghetti squash

Keywords: dinner, italian, chicken, stove top, skillet, gluten-free, grain-free, low-carb