From Beef.com

1 pound boneless beef top sirloin steak, cut 1 inch thick
1/3 cup prepared (bottled) Italian dressing
3 tablespoons fresh lime juice (about two limes’ worth)
2 green or red bell peppers, each cut into quarters
2 medium onions, cut crosswise into 1/2-inch thick slices
1/4 teaspoon salt
8 flour tortillas (8 to 10-inch diameter), warmed
Salsa

Soak eight 9-inch bamboo skewers in water 10 minutes; drain.
Meanwhile cut beef steak lengthwise in half, then crosswise into 1/2-inch thick strips.
Thread beef, weaving back and forth, evenly onto skewers.
Combine dressing and lime juice in small bowl.
Brush onto bell peppers, onions and beef.
Grill, uncovered, 12 to 15 minutes or until tender, turning occasionally. About 10 minutes before vegetables are done, place beef skewers on grid with vegetables.
Grill beef, uncovered, about 7 to 9 minutes for medium rare to medium doneness, turning occasionally.
Remove beef from skewers; season with salt.
Serve with vegetables and salsa, as desired, in tortillas.

Servings: Four
Prep time: 15 Minutes
Cook time: 15 Minutes
Difficulty: Easy

Fast and Way Easy Beef to BBQ