Becky's Black Bean and Corn Salsa

This is a famous recipe from my sister Becky, healthy and delicious! It also appeared in the Memare cookbook, a collection of family recipes.

Becky's Black Bean and Corn Salsa

-- 2 cans diced tomatoes, drained (or 4 cups chopped fresh tomatoes)
-- 2 cans black beans, drained
-- 1 can corn, drained
-- 1 large purple onion, chopped small
-- 1 bunch cilantro, chopped
-- juice of 1 lime
-- 1 jalapeno pepper, chopped small

Combine everything together and let set for at least 1 hour before serving, if possible.