Cajun Tomato Gravy

1 large onion, finely chopped
3 stalks celery, finely chopped
3 cloves garlic, pressed
1 cup shallots, finely chopped
2 small cans tomato paste
1 small can tomato sauce
2 tablespoons granulated sugar
Salt and pepper, to taste
2 tablespoons Parmesan cheese, grated
1 teaspoon Accent?

In an iron skillet, sauce onion, celery, garlic and shallots. When vegetables are done, add one cup water; reheat, then add tomato paste, tomato sauce, sugar, salt, pepper, Parmesan cheese and Accent?. Simmer very slowly for at least 30 minutes.