3 cups milk 1 1/2 cups polenta ( medium ground polenta - shredded 1/4 cup asiago cheese ( grated ) 1/4 cup parmesan cheese, grated 1/4 cup romano cheese ( grated ) directions 1. adjust the oven rack to the middle position and preheat oven to 425 degrees f . place the sausages on a large, rimmed baking s