Italian Shepherds Pie 2

Name: Italian Shepherd's Pie 2
Ingredients: 1⁄2 lb ground beef; 1⁄2 lb ground pork; 1 teaspoon fennel seed; 1⁄2 teaspoon cayenne pepper; 1 large red pepper, seeded, cored and diced; 1 large green pepper, seeded, cored and diced; 1 medium onion, diced; 1 garlic clove, minced; 1⁄2 teaspoon italian seasoning; 1⁄4 teaspoon salt; 1⁄8 teaspoon black pepper; 1 (14 1/2 ounce) can chopped tomatoes, drained; 2 tablespoons instant polenta; 1 1⁄2 teaspoons salt; 1 1⁄2 cups instant polenta; 1⁄2 cup grated parmesan cheese, divided