Heat oil; sauté onions, pepper and garlic in the oil until tender. Add salt, pepper, tomato paste, tomatoes, and oregano. Simmer for 30 minutes, stirring occasionally. Stir in cheese before serving or serve cheese separately. Serve with hot cooked and drained spaghetti or similar pasta.
Serves 6 to 8
Calories per serving (based on 6 servings, meat-free): 163
Meat version: Sauté 1/2 to 1 pound of lean ground beef or sausage with the onions, peppers and garlic until browned.