1 pound Italian sausage

2 C. sliced onion

1 tsp. minced fresh garlic

2 C. sliced crimini mushrooms, cleaned

1 C. sliced zucchini

1 (28-ounce) can crushed tomatoes in tomato puree

2 tsp. dried basil

1 tsp. dried oregano

1/4 tsp. crushed red pepper flakes

1/2 tsp. salt

1 (17-ounce) package pre-cooked garlic flavored polenta, cut into 1/4-inch rounds

1 1/2 C. shredded Provolone cheese

1/4 C. freshly grated Parmesan cheese

Fresh basil leaves for garnish

 

Squeeze sausage out of the casings into a large heavy skillet. Over medium heat, sauté sausage, breaking up sausage into small pieces. Cook until sausage is no longer pink. Remove sausage from pan with a slotted spoon and drain well on clean paper towels. Reserve 1 T. pan drippings and discard other drippings. Reheat same large heavy skillet over medium heat and add reserved 1 T. pan drippings. Add onion and garlic and sauté until onion is soft. Add mushrooms and zucchini. Cook and stir frequently until all liquid evaporates. Stir in tomatoes, herbs, red pepper flakes and salt. Return sausage to pan and simmer for 5 minutes. Spread an even scant layer (about 2/3 C.) of sauce on bottom of an 11×7 inch baking pan. Add a single layer of sliced polenta rounds. Layer with 2 C. of sausage sauce, followed by 3/4 C. of Provolone. Finish with an additional layer of polenta rounds, all the sausage sauce and all the Provolone. Sprinkle Parmesan cheese atop. Bake, uncovered, in a preheated 350 degree F oven for 30 minutes or until bubbly. Let cool for 10 minutes before serving.  Garnish each serving with fresh basil leaves.