Puerto Rican Beans

Source: Ingrid Frau and Barbara Pistrang

1 can kidney beans or black beans
2-3 T tomato sauce, salsa, chopped tomato (whatever you have)
2-3 T finely chopped onion
1 clove garlic, minced
pinch of sugar
1 pkg Sazon Goya seasoning
1 T olive oil

Heat the oil. Add 'sofrito' (onion, garlic, tomato sauce, sazon, sugar), and stir briefly. Add beans with liquid. Simmer 10-15 minutes. For dryer beans, drain off some of the liquid before adding can of beans.