Nothing satisfies like a fresh tomato salsa in the middle of summer. Scooped up on corn chips or piled liberally on the tacos of the day, the mélange of ingredients creates an irresistible symphony of fresh flavor. With red tomatoes, green cilantro, and red onions, it is as pleasing to look at as it is to taste. Triple or quadruple this recipe at the height of the season because there’s never enough.