Hawaiian-style Burgers

I thought I had typed this one up before, but I can't find it; so here it is again.

Hawaiian-style Burgers
1 ½ pounds ground beef
1/3 cup chopped green onions*
2 tablespoons Worcestershire sauce
1/8 teaspoon black pepper
1 egg (optional)
1/3 cup pineapple preserves**
1/3 cup barbecue sauce
6 pineapple slices
6 hamburger buns, split and toasted

1. Combine beef, onions, Worcestershire and pepper in large bowl.
2. Shape into 6 (1/2 inch thick) patties
3. Combine preserves and barbecue sauce in small saucepan.
4. Bring to a boil over medium heat, stirring often.
5. Grill, for 8-10 minutes or to medium doneness, turning and brushing often with sauce.
6. Place pineapple on grill; grill 1 minute or until browned, turning once.
7. To serve, place patties on buns with pineapple.

*I left these out or substitute with onion powder
**I’ve also used apricot/pineapple preserves- yummy :)