Yields 4-6 servings.

¼ cup thinly sliced red onion
1 pound peaches, peeled, pitted, and sliced ½-inch thick
1½ pounds tomatoes, such as homegrown heirlooms, of different sizes and colors, large ones diced and small ones halved
1 tablespoon red wine vinegar
3 tablespoons extra-virgin olive oil
1 teaspoon honey
Salt and freshly ground black pepper
4 ounces crumbled feta cheese
2 tablespoons small basil leaves or torn basil leaves

In a large bowl, combine onion, peaches, and tomatoes. In a medium bowl, whisk together vinegar, olive oil, honey, and salt and pepper to taste. Drizzle over fruit mixture, then add feta and basil and gently toss. Serve immediately.