If using ground pork, follow same instructions as ground beef.
If using 20 oz. ground beef, follow same instructions as 10 oz. ground beef in Step 2, forming into four 4”-diameter patties. Follow same instructions as 10 oz. ground beef in Step 4, halving cheese slices to add cheese to all four patties, if desired. Serve burgers as double-deckers, if desired.
If using bacon, line a plate with a paper towel. Place a medium non-stick pan over medium heat and add bacon to hot pan. Flip occasionally until crisp, 6-8 minutes. Transfer to towel-lined plate to remove excess oil. Top burgers with bacon.