Cheddar Stuffed Burgers

2 lb of Ground Beef
3 Cloves of garlic, minced
1 Tbsp of Worcestershire Sauce
1/4 cup of BBQ Sauce
1/2 cup of Shredded Sharp Cheddar
8 Hamburger Buns, buttered and toasted
1/4 cup of Mayo
2 Tbsp of Ketchup
Sliced Dill Pickles
Sliced Tomatoes
2 Yellow Onions
1 Tbsp of Butter
1 Tbsp of Olive Oil
3/4 cup of Budweiser
3 Tbsp of Melted Unsalted butter for toasting the buns.
Salt and Pepper, to taste