Ropa Vieja

1 Tbsp vegetable oil
2 lb flank steak
1 cup beef broth
8 oz can tomato sauce
1 small onion, diced
1 pepper, seeded and sliced into strips (I use red, since I don't care for green, but you can use either one)
2 cloves garlic, chopped
6 oz can tomato paste
1 tsp ground cumin
1 Tbsp olive oil
1 Tbsp white vinegar

Heat vegetable oil in a large skillet.  Bown flank steak on each side, about 4 minutes each side.  Transfer beef to slow cooker.  Pour in beef broth and tomato sauce, then add the remaining ingredients.  Stir until well blended.  Cover and cook on high for 4 hours or low for 10 hours.

The meat will be very tender and fall apart tender.  Eat with tortillas, or beans and rice.