Lettuce, tomato slices, Beer Pickles (recipe below), ketchup, mustard, and mayonnaise, to serve
Instructions
Freeze bacon until firm, about 1 hour. Cut bacon into large pieces. In the work bowl of a food processor, place bacon; process until ground.
Preheat oven to 400°.
Heat a large cast-iron skillet over medium-high heat. Add bacon and onion; cook until bacon is partially cooked, about 10 minutes. Remove bacon mixture using a slotted spoon, and let drain on paper towels. Let cool for 5 minutes.
In a large bowl, stir together bacon mixture, beef, Worcestershire, parsley, pepper, and salt. Divide beef mixture into 4 portions, and shape each portion into a 5-inch patty. In same skillet, cook patties over medium heat for 3 minutes per side. Place skillet in oven.
Bake for 4 minutes. Add cheese; bake until cheese is melted, about 1 minute more. Serve patties on buns with lettuce, tomato, Beer Pickles, ketchup, mustard, and mayo, if desired.
Recipe by Southern Cast Iron at https://southerncastiron.com/beef-bacon-burgers/