PREPARATION:
- Combine beer, soy sauce, garlic, cumin, chili powder and red pepper in large resealable food storage bag; knead bag to combine. Add beef and seal. Refrigerate up to 24 hours, turning occasionally.
- Preheat grill. Remove beef from marinade; discard remaining marinade. Place steak on grid over medium heat. Grill, uncovered, 17 to 21 minutes for medium rare to medium or until desired doneness, turning once during grilling. Grill bell peppers 7 to 10 minutes or until tender, turning once.
- Cut steak across the grain into thin slices and serve with bell peppers, tortillas, sour cream and salsa.
