Beef with Hot Sauce

3 lb Beef Chuck Roast

1/2 c Chopped onion

1/2 c Chopped Celery

1/2 c Chopped Green Pepper

1 x Water

1 1/2 c Catsup

3 T Hot Taco Sauce

2 T Brown Sugar

2 T Vinegar

2 ea Cloves Garlic, Minced

1 ea Bay Leaf

1 t Salt

1 t Dry Mustard

1 t Chili Powder

8 ea Hamburger Buns

Place meat, onion, celery and green pepper in Dutch oven; cover with water. Cover tightly and cook slowly 2 1/2 to 3 hours or until tender. Remove meat; cool, shred and return to cooking liquid. Add catsup, taco sauce, brown sugar, vinegar, garlic, bay leaf, salt, mustard and chili powder. Cook slowly 1 hour. Remove bay leaf; serve on buns.