Beef Fajitas
["12 flour tortillas, warm", "1 to 1 1/2 lb. beef skirt steak or round steak", "1/2 c. fresh lime juice", "4 cloves garlic, minced", "1 tsp. salt", "1/2 tsp. black pepper", "1 onion, sliced in rings", "1 Tbsp. vegetable oil", "1 green bell pepper"]
["Cut beef into 4 pieces.", "Put in plastic bag with lime juice, garlic, salt and pepper.", "Close bag and marinate in refrigerator for 2 to 30 hours or overnight."]
["flour tortillas", "beef skirt", "lime juice", "garlic", "salt", "black pepper", "onion", "vegetable oil", "green bell pepper"]