Pre-heat oven to 350 degrees. Spray a muffin pan with non-stick spray and set aside.
In a large bowl, combine first 9 ingredients (ground chicken through red pepper flakes) and mix well. Divide mixture evenly between 12 muffin cups.
Using a small brush or spoon, spread marinara evenly on all muffin cups then sprinkle each with grated cheese. Bake for 15-18 minutes. Serve immediately.
