This is made by my daughter Sarah, and there's no exact quantities, but any good approximation is really really yummy. I can eat this until someone puts it away.
1 - 2 can of black beans
diced tomatoes, at least 2 big tomatoes
red onion, finely diced
jalapeno, finely diced, 1 should do
cilantro, chopped up
lime juice, 1 or 2 limes
olive oil, just a little bit
Put the black beans and the frozen corn into a strainer and run warm water over them. This is to rinse the beans and help thaw the corn. Put into an appropriate sized bowl and add the remaining ingredients and mix gently. You've noticed that there are almost no quantities given. Sarah doesn't have any. She just puts these things together and there you have it. Serve just as it is, or with chips of any kind.
This type of recipe is very popular on the Food Network. Paula Deen, Emeril Legasse, and Rachael Ray all have a good looking recipe for this. And I saw a recipe that used mango, and that sounded pretty darn good also.