Preheat griddle to low. Place the ground beef on a sheet pan lined with wax or parchment paper. Press/Roll the beef into a rectangular shape slightly larger than the sheet of Hawaiian rolls. Set aside.
Add sliced bacon to the griddle top and begin to cook. As bacon cooks move it off to the slide. Add diced onions to the bacon grease on a griddle and cook the onions.
When the onions are almost cooked through season with the burger seasoning. Toss to coat with seasoning and then make a rectangle the same size as the burger patty on the griddle.
Cook the beef patty on the first side with the onions until the meat is over halfway cooked through and a slight crust develops. Then flip the patty to the second side.