6-inch corn tortillas
ground beef
chili powder
ground cumin
kosher salt
Black pepper, to taste
vegetable oil
small sweet potatoes (about 1 pound), peeled and cut into 1/2-inch pieces
14.5-ounce can black beans, drained and rinsed
chipotle chile in adobo, chopped, plus 1 teaspoon sauce from the can
jarred salsa
Chopped avocado, thinly sliced radishes, crumbled queso fresco, and sliced scallions, for topping