Step 1

Place the steak into a sealable bag. Place the peppers and onion into a separate sealable bag. Add the olive oil, lime juice, chili powder, ground cumin, cayenne pepper, salt, black pepper, and garlic to a jar with a screw top or tight fitting lid. Shake until well combined. Pour 1/3 of the marinade over steak, 1/3 of marinade over vegetables and reserve the remaining marinade in the jar for using when cooking the steak fajitas. Seal the bags tightly and refrigerate for one hour to overnight.

Step 2

When ready to cook, heat a large skillet over medium-high heat. Pour the vegetables into the skillet and cook until just tender crisp, about 5 minutes. Remove the vegetables from the skillet to a plate and add steak strips to the same skillet. When the steak is cooked throughout (about 7-10 minutes), add vegetables back to the skillet along with the reserved marinade.

Step 3

Serve with warm tortillas and desired optional garnishes.