4 ripe tomatoes
1 1/2 cup halved grape or cherry tomatoes
¼ cup thinly sliced red onion
2 cloves minced garlic
1 ½ tablespoons chopped fresh herbs like basil, thyme, or parsley (see notes about dried herbs)
3 tablespoons extra virgin olive oil
1 tablespoon red wine vinegar
Kosher salt and freshly ground black pepper to taste