Serve with optional ingredients sour cream, guacamole, shredded Mexican blend cheese, chopped tomatoes, shredded lettuce, salsa
Cut flank steak into 6 or 8 pieces and marinate in lime juice and oil for about 30 minutes.
Add all the ingredients except tortillas into the crockpot and mix well.
Cook on low for 8 or 9 hours, until the beef is tender and can be shredded easily.
Remove from slow cooker and shred the meat. Return meat to slow cooker and stir.
For the fajitas, spread meat mixture onto warm flour tortillas and add your favorite toppings.
If you can’t find flank steak, you can substitute skirt steak, london broil or flat iron steak