Place the frozen burger directly on a preheated grill (350°F on indirect heat) or skillet (medium heat).
Wait for the juices to rise to the top without moving the burger around and do NOT press on it with a spatula, approximately 4 to 6 minutes. Browning is a good thing, it helps to develop natural flavors!
Flip the BUBBA burger and cook for another 4 to 6 minutes or until your desired doneness.
Allow the burger to rest. While the burgers rest, place the pineapple slices on direct heat, flipping once after 1 minute. They should easily develop char marks.
Assemble the burger by placing field greens on the bottom, then your burger, a healthy slathering of onion jam, two pineapple slices and a drizzle of teriyaki sauce.
Enjoy open-faced or top with the other half of the bun.
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