2 tablespoons olive or
           safflower oil
            1 large onion, chopped
            2 doves garlic, minced
            1 medium green or red bell
            pepper, diced
            1/1/2 cups cooked fresh or
            thawed frozen corn kernels
            2 1/4 cups canned or cooked
            pinto beans
            2 cups chopped ripe tomatoes,
            or the equivalent of imported
            canned tomatoes, drained
            2 teaspoons chili powder, or to
            taste
            1 teaspoon dried oregano
            ½ teaspoon ground cumin
            salt to taste