Wash and drain the beans. In a large pot bring the beans, water, onions, and salt to a boil. Lower the heat, cover, and simmer, adding more water if necessary, until the beans are tender and will mash easily (approximately 3 hours). Blend the ingredients for the salsa in a small bowl. Set aside. Drain and mash the beans with a potato masher or electric mixer. Preheat oven to 350 degrees. Wrap the tortillas in foil and heat in oven for 8 to 10 minutes. Spoon some of the bean mixture onto each tortilla, top with green onions and salsa, and roll into a burrito. Makes 10 burritos and 1- half cups salsa. *