2 tablespoons plus 1 cup all-purpose flour, divided
1/2 teaspoon dried basil
1/2 teaspoon fennel seed, crushed
1 can (15 ounces) tomato sauce
2 cups shredded mozzarella cheese
2 large eggs, room temperature
1 cup 2% milk
1 tablespoon canola oil
1/2 teaspoon salt
2 tablespoons grated Parmesan cheese, optional
Preheat oven to 425°. In a saucepan, cook sausage, onion and green pepper over medium heat until meat is no longer pink; drain. Stir in 2 tablespoons flour, basil and fennel. Add tomato sauce. Bring to a boil; cook and stir for 2 minutes.
Transfer to an ungreased 13x9-in. baking dish. Sprinkle with mozzarella cheese. Place remaining 1 cup flour in a large bowl. In another bowl, whisk eggs, milk, oil, salt and, if desired, Parmesan cheese. Stir into flour until blended; pour over casserole.