Open all cans and drain liquid. Rinse and drain beans and place with corn in large container that has a sealable lid. Stir to mix.
Add onion, garlic and balsamic vinegar and stir. Put lid on container and refrigerate.
When ready to serve, have the following available for guests to individualize their portion to taste: olive oil, salt or lite salt, black pepper, garlic powder or garlic salt, red pepper flakes or Mrs. Dash Extra Spicy, hot sauce.
There are 113 calories in 1 serving of Three Bean & Corn-Pepper Salad.