1-First Step: Mix the marinade Start by grabbing a small measuring cup or bowl. Whisk together 1/4 cup olive oil, 1/2 tablespoon lime juice, and 3 tablespoons fajita seasoning until the mixture looks smooth and well blended. This quick marinade is what gives Steak Fajita Kebabs their bold flavor, and it only takes a minute to put together.

2-Second Step: Marinate the steak Place 1 pound of cubed top sirloin steak into a plastic bag or a container with a lid. Pour the marinade over the beef, then toss or shake it gently so every piece gets coated. Refrigerate for exactly 30 minutes. That short marinating time gives you good flavor without making the steak mushy.

3-Third Step: Prep the grill and skewers While the steak rests in the fridge, preheat your grill to medium heat. If you are using wooden skewers, soak them in water ahead of time so they do not burn. Metal skewers work too, but they get hot fast, so use oven mitts when handling them.

4-Fourth Step: Build the kabobs Take the marinated steak out of the fridge and thread it onto skewers with the red bell pepper squares, yellow bell pepper squares, and red onion squares. Aim for about 5 pieces of meat per skewer, and tuck the vegetables in between the steak pieces so they cook evenly. Keep the pieces close in size so everything grills at the same pace.

5-Fifth Step: Grill the kabobs Place the skewers on the grill and cook them for 6 minutes on each side. Turn them carefully so you get good grill marks on every side. The steak should be browned on the outside and juicy inside, while the peppers and onions should be softened with a little char.

6-Sixth Step: Serve and enjoy Take the kabobs off the grill and let them rest for a couple of minutes before serving. You can serve Steak Fajita Kebabs directly from the skewers, or slide the meat and vegetables into warm tortilla shells. Add fresh cilantro, sour cream, guacamole, or chips if you want a fuller meal.