Add finely chopped white onion (sweet), finely chopped cilantro, a habanero or two (or whatever your favorite hot pepper is), lime juice, and olive oil. Add salt and pepper.
½ sweet white onion, ⅓ cup finely chopped cilantro, 1 Habanero pepper, finely chopped, 2 tablespoons olive oil, Juice of 1 lime, Salt & freshly ground black pepper