In a large bowl, stir together the black beans, diced tomatoes with liquid, corn, chili peppers, oil, vinegar, salt and Tabasco. Cover and refrigerate 3-4 hours, stirring occasionally.
To serve, thoroughly stir in the avocado and cilantro. Serve with tortilla chips.
Recipe by Go Dairy Free at https://www.godairyfree.org/recipes/spicy-mexican-fiesta-dip