After 20 minutes, if desired, add 1 ½-2 cup cheese and return to oven for ten mins until melted.
Remove from oven. Let rest for 5 minutes.
Slice the cooked ground beef into 9 sections.
Slice 9 Hawaiian rolls.
Build burgers and enjoy.
Notes
Finely chopped onions can be added to the meat before cooking
If feeding a crowd and you need more then 9 sliders, use a baking sheet and double the recipe