Skirt Steak Fajitas with Peppers and Onions

Name: Skirt Steak Fajitas with Peppers and Onions
Ingredients: 1 pound skirt steak, sliced into 1 1/2-inch strips; 3 tablespoons cumin powder; 1 teaspoon smoked paprika; Kosher salt and freshly ground black pepper; 3 tablespoons vegetable oil; 1 red bell pepper, sliced 1 inch thick; 1 yellow bell pepper, sliced 1 inch thick; 1 small yellow onion, sliced 1 inch thick; 1/2 cup roughly chopped cilantro; 12 fresh corn tortillas, warmed, for serving; Queso fresco, for serving; Pico de gallo, for serving; 1 avocado, sliced; Sour cream, for serving