Purple onions and cans of black beans are pretty hard to come by in Japan, but when I can find them, this is a versatile side dish/salad that three out of four of us love.
- a can of corn, drained
- a can of black beans, drained
- cilantro (coriander leaves), chopped
- rice vinegar (or regular white vinegar)
- olive oil
- salt and pepper
- sweet red pepper, chopped
- purple onion, chopped
Mix it all together and chill in the fridge for a bit for all the flavors to meld.