2 teaspoons olive oil
2/3 cup diced red bell pepper (from 1 bell pepper)
3/4 cup frozen whole kernel sweet corn, thawed
3/4 cup canned unsalted black beans, rinsed and drained
12 ounces skinless, boneless rotisserie chicken breast, shredded (about 2 1/2 cups)
1/3 cup Grandma Irma BBQ sauces
10 (6-in.) corn tortillas
1/2 cup plain 2% reduced-fat Greek yogurt
3 tablespoons chopped fresh cilantro leaves, plus more for garnish
1 tablespoon fresh lime juice
1/4 teaspoon kosher salt