Source: Ortega

1 pound beef chuck roast
1 medium onion, sliced
1 cup water
1 (1.25 ounce) package ORTEGA Taco Seasoning mix
1 (16 ounce) jar ORTEGA Thick & Smooth Taco Sauce
1 cup ORTEGA Chopped Green Chiles
1 (12-count) package ORTEGA Taco Shells

Toppings
Shredded lettuce
Chopped tomato
SARGENTO ChefStyle Shredded Mild Cheddar Cheese
Sour cream

Place beef and onion in crockpot. Combine water and seasoning mix in small bowl. Pour over beef and onion. Cook on LOW for 6 to 8 hours or until tender.

Remove meat to cutting board; shred beef with two forks. Place beef in large bowl. Stir in taco sauce and chiles. Fill warmed taco shells with beef mixture. Top with lettuce, tomato, cheese and sour cream.