Preheat oven to 400 °F
Spray a 9 x 13 baking dish with nonstick spray. Place the bonelss chicken breasts in the pan.
Season chicken with onion powder, paprika, italian seasoning, salt and pepper.
Sprinkle chopped sun dried tomatoes over the chicken.
In a large measuring cup or bowl, add cream, chicken stock, garlic powder and flour. . Whisk until no flour is visable. Stir in 1/4 cup of the the grated parmesan cheese.
Pour the cream mixture over and around the chicken and sun dried tomatoes.
Sprinkle with remaining parmesan cheese.
Bake uncovered for about 25 minutes until the sauce is thick and the chicken is 165 degrees internally.
Remove from the oven and stir chopped spinach into the hot sauce. Let sit for a few minutes until spinach is wilted.
Serve with rice, cauliflower rice or quinoa and a steamed veggie for a simple and fast dinner!