1 small onion finely chopped
2 medium tomatoes chopped small
1 large cucumber chopped small
4 red radishes chopped small, optional
1 green chili finely chopped
1/4 cup packed chopped cilantro
1/4 tsp salt
1/4 tsp freshly ground black pepper
1/4 tsp cayenne pure red chili powder
1 tsp freshly squeezed lime or lemon juice