4 plum tomatoes, seeded and chopped
½ cup finely chopped onion
2 fresh chile peppers, mild or hot, seeded and finely chopped
2 tablespoons chopped red or yellow bell pepper
1½ teaspoons finely chopped fresh cilantro
1 teaspoon lime juice
salt and pepper, to taste

Combine ingredients in a glass or other non-reactive bowl and refrigerate for at least 30 minutes before serving.