1/2 small red or white onion, finely chopped
1 ear of corn, steamed for five minutes
1 pound ripe tomatoes, finely chopped
1 to 3 jalapeño or serrano peppers (to taste), seeded if desired and minced
1/2 cup chopped fresh cilantro
2 tablespoons fresh lime juice
Salt to taste
1 boneless, skinless chicken breast, poached and shredded (about 2 cups)
8 corn tortillas
1/2 cup crumbled queso fresco or feta cheese