- Slice: Cut the chicken in half lengthwise to create 4 thin pieces.
Sprinkle salt and pepper on both sides of the chicken.
- Cook Chicken: In a large skillet, heat olive oil and butter over medium heat. Add the chicken. Cook each side until golden browned and the internal temp reaches 165°F. Remove chicken from the skillet and set aside.
- Sauté: In the same pan, sauté the onion until translucent. Add the garlic and cook for another minute. Add in tomatoes and Italian seasoning.
- Creamy Sauce: Slowly whisk in the chicken broth. Then whisk in the heavy cream and 1/2 cup cheese. Bring to a simmer and let it cook for a few minutes to thicken. Season with salt and pepper to taste.
- Combine: Add spinach and allow to wilt. Return the cooked chicken to the skillet. Spoon over top.
- Serve: Serve hot, garnished with fresh parsley or basil if desired.