1 pound skirt steak cut into 3- to 4-in.-wide strips if needed
4 teaspoons vegetable oil
Equipment
bowl
grill
aluminum foil
cutting board
Directions
Mix lime juice, chile powder, oil, and salt in a medium bowl.
Add steak, turning to coat evenly with marinade. Chill at least 30 minutes and up to 3 hours.
Heat grill to high (450 to 550). Cook steak, covered, turning once, until grill marks appear and steak is slightly pink in the center, about 4 minutes.
Transfer to a cutting board, tent with foil, and let rest 10 minutes, then slice thinly to fit in rolls.
Open rolls and sprinkle each with about 2 tbsp. cheese. Grill rolls, cut sides up and covered, until crisp and cheese starts to melt, about 1 minute.
Fill rolls with steak, avocado, half the jalapeos, and a drizzle of crema.