1 London broil
1 package taco seasoning
1 cup chopped onion
1 tablespoon white vinegar
1 (4.5-ounce) can chopped green chiles
1/2 cup beef broth
12 flour tortillas
toppings of choice
Trim fat from meat; rub seasoning mix over both sides of meat.
Place meat in a slow cooker coated with cooking spray; add onion, vinegar, green chiles, and beef broth.
Cover with lid; cook on low-heat setting for 9 hours.
Remove lid from slow cooker and shred meat with two forks. Stir meat to combine with juices in slow cooker.
Heat tortillas according to package. Make burrito with meat and desired toppings.