Bacon-wrapped Grilled Hamburger Steak

2 pounds ground beef
1 1/2 teaspoons salt
1/2 teaspoon pepper
1 tablespoon catsup
3 tablespoons milk
1/8 teaspoon basil
1/8 teaspoon rosemary
4 slices bacon (may need 8 slices)
 
Combine all ingredients, except bacon.  Mix thoroughly.  Shape into four thick patties.  Wrap around the edge of each on or, if necessary, two strips of bacon.  Fasten with toothpicks.  Cook on grill 4 inches from coals for 15 minutes or until meat is brown outside and light inside.  Turn often.