Ingredients
1 large onion, chopped1/4 cup lime juice1 jalapeno pepper, seeded and minced1 serrano pepper, seeded and minced1 tablespoon chili powder3 garlic cloves, minced1/2 teaspoon ground cumin1 beef top round steak (about 1-1/2 pounds)1 teaspoon salt1/2 teaspoon pepper1/4 cup chopped fresh cilantro12 corn tortillas (6 inches)Cooking spray TOPPINGS:1-1/2 cups shredded lettuce1 medium tomato, finely chopped3/4 cup shredded sharp cheddar cheese3/4 cup reduced-fat sour cream, optional
Preparation
Place the first 7 ingredients in a 3- or 4-qt. slow cooker. Cut steak in half and sprinkle with salt and pepper; add to slow cooker. Cook, covered, on low until meat is tender, 6-8 hours.
Remove meat; cool slightly. Shred meat with 2 forks. Return beef to slow cooker and stir in cilantro; heat through. Spritz both sides of tortillas with cooking spray. Place in a single layer on baking sheets; broil 1-2 minutes on each side or until crisp. Spoon beef mixture over tortillas; top with lettuce, tomato, cheese and, if desired, sour cream.
