Divide ground beef into 10 even portions. Roll into balls.
Slightly flatten each pattie and sprinkle with salt and pepper.
Heat vegetable oil in large skillet/fry pan over medium high heat. This oil will keep the first patties from sticking too much; the additional patties won’t need it because of the grease from the cooking hamburgers. You want the oil to just barely start smoking.
Place a slider* in the pan, cook for ~10 seconds, flip, then smash flat with a large spatula. Use something like a wooden spoon or a soup can to really smash the slider flat.* Let it cook for 30-1 minute (you want it golden brown), flip* and cook another ~30 seconds. Repeat with the remaining sliders.
Slice the Hawaiian rolls in half if using, add your burger, cheese, bacon, and any other toppings you want!
* Start with cooking one slider just to get the hang of the whole cooking, flipping, smashing bit. Once you have that down you can cook more than one in the pan at a time.
*Be careful pressing down on the spatula- hot oil will splatter and burn!
*You may need to smash the burger again after you flip it the second time if you notice it starting to contract and become too thick.
*Nutrition facts is just for the patties, toppings and buns are not included.