Sloppy Joes

This makes a pretty big batch

3 lbs hamburger - brown, drain
add:
3 chopped onions
1 chopped green pepper
1 chopped clove garlic
3 chopped fine ribs of celery

1/2 c. flour - sprinkle over meat and veggies
then add:
2 T vinegar
1 T Salt
2 T chili powder
3/4 T dry mustard
1/4 c. brown sugar
2 T. worchestershire
3/4 c. ketchup
1 qt crushed tomatoes

Simmer together for at least 20 min - serve on open face buns