| 4 cups sliced fresh mushrooms |
| 3 medium carrots, coarsely chopped |
| 1/2 cup chopped green pepper |
| 1/2 cup chopped sweet red pepper |
| 2 cans (28 ounces each) crushed tomatoes |
| 2 cans (15 ounces each) tomato sauce |
| 1 can (12 ounces) tomato paste |
| 2 teaspoons dried oregano |
| 1 1/2 teaspoons brown sugar |
| 1 cup grated parmesan cheese |