INGREDIENTS
1
large onion, thinly sliced
3 lb
chuck roast
1/3 cup
Worcestershire sauce
1 tsp
kosher salt
1
heaping teaspoon ground black pepper
2 cloves
garlic, minced
8
large flour tortillas
2 cups
shredded sharp cheddar
8 oz
sliced provolone cheese
shredded lettuce and sour cream to serve