On medium heat sauté your sausages once they have a nice sear, add your diced onions and peppers. Once those are caramelized add the can of diced tomatoes, marinara sauce and sun-dried tomatoes. Cook on low for about 25 minutes till the sausages are fully cooked.
Boil water, milk and butter once it’s come to a full boil add your grits. Stir the grits vigorously to avoid lumps, lower the heat and add the cheeses. Cover and cook for about 8-10 minutes (if you’re not using quick made grits you might have to cook them longer).
Plate your grits and spoon on a heaping amount of the Italian chicken sausage with extra gravy.