1 pounds Italian sausage links, sliced
2 tablespoons olive oil
1/3 cup chopped onion
1/4 cup chopped green bell pepper
6 to 8 ounces sliced mushrooms
2 cans (14.5 ounces each) tomatoes, coarsely chopped
3 cans (24 ounces total) tomato sauce
2 cans (6 ounces each) tomato paste
1 1/2 teaspoons dried leaf basil, crumbled
1 1/2 teaspoons dried leaf oregano, crumbled
1/4 teaspoon dried leaf thyme
1/2 teaspoon dried leaf parsley
1 teaspoon garlic powder
1 teaspoon salt
1/4 teaspoon black pepper
1 1/2 teaspoons sugar
1/2 teaspoon vinegar
1 cup water
grated Parmesan cheese