Combine the tomatoes, scallions, jalapeno, garlic, cilantro, lime juice and vinegar in a medium serving bowl. Add the salt and pepper. Stir to combine. Let sit at room temperature for 10 minutes, then stir again.
Adapted from "One Dish at a Time: Delicious Recipes and Stories from My Italian-American Childhood and Beyond" by Valerie Bertinelli © Rodale 2012. Provided courtesy of Valerie Bertinelli. All rights reserved.