1 (10 ounce) can Italian-style stewed tomatoes, drained
2 (8 ounce) cans tomato sauce
1 (15 ounce) can peeled and diced onion
1 cup 1/4 cups shredded Cheddar cheese
1 1/2 cups beef broth
2 tablespoons distilled white vinegar
2 tablespoons Worcestershire sauce
2 tablespoon cornstarch
1 cup boiling water
1/4 cup vegetable oil
Place tomato sauce, tomato, onion, Cheddar cheese, beef broth, vinegar and Worcestershire sauce in large pot over medium heat, stirring occasionally. Bring to a boil. Reduce heat to low; simmer, stirring occasionally, for 15 minutes.
Stir tomatoes with 1/4 cup vegetable oil into tomato sauce. Cover and simmer for 5 minutes. Stir tomato mixture back into tomato sauce. Heat through and serve.