1 tablespoon paprika
2 teaspoons packed light brown sugar
1 teaspoon ground cumin
1 1/2 teaspoons chili powder
1/2 teaspoon ancho chile powder
1/2 teaspoon garlic powder
Kosher salt
1 1/2 pounds skirt steak
Juice of 3 limes, plus wedges for serving
3 tablespoons extra-virgin olive oil, plus more for the grill
4 bell peppers (red, orange and/or yellow), thinly sliced
2 red onions, thinly sliced
8 to 12 flour tortillas
Shredded cheddar cheese and chopped fresh cilantro, for topping