Sloppy Joes

1 to 2 tablespoons vegetable oil
1/2 cup minced onion
1/2 cup minced green bell pepper
1 pound firm tofu, frozen, then thawed and mashed
6 tablespoons catsup
6 tablespoons chili sauce
1/2 teaspoon salt
Pepper, to taste
4 buns, lightly toasted

Heat the oil in a large skillet over medium heat. Add onion and green pepper and saut