Ingredients
1 tablespoon vegetable oil
1/2 onion, chopped
2 garlic cloves, finely chopped
1 teaspoon ground cumin
1 teaspoon kosher salt
1 (16-ounce) jar medium red salsa
1/2 cup sour cream, plus more for serving
4 corn tortillas, torn into quarters
4 cups shredded cooked chicken (from 1 [2 1/2-pound] rotisserie chicken)
1 (15.5-ounce) can black beans, drained, rinsed
1 cup shredded Mexican cheese blend
Pickled jalapeños and cilantro (for serving; optional)