Sloppy Joes

2 1/2 lbs. hamburger chopped onions(may use Dried onions) chopped celery 1 1/2 tbsp mustard 1 qt.( 32 oz.) Tomatoes thoroughly blended 1/2 c ketchup 1 tbsp Worcestershire sauce salt and pepper to taste Brown hamburger with the onions. Add rest of ingredients and simmer for 2 to 4 hours. Serve on hamburger buns. Note: we can put in crock pot low for 4 hrs.