In the serving bowl, add drained black beans, corn kernels, chopped cucumber, onion, tomato, red pepper, jalapeno, cilantro, lime juice, salsa, and salt.
Mix with a slotted spoon thorughly until combined.
Serve with taco or as side salad.
Notes
Adjust the spice level by adding more or less jalapeño, or remove the seeds for milder heat.
Store leftovers in the fridge for up to 3 days or freeze for up to 2 months.