We haven't tried this, but we have seen other test kitchens test making burgers in an Instant Pot. To do this, form seasoned ground beef mixture into patties and then wrap in foil, then arrange the burgers on the trivet inside the Instant Pot. Cook 4 ounce patties on high pressure for 12 minutes. Quick release the pressure then let the burgers rest 5 minutes before unwrapping. Add the cheese and any desired toppings right before serving.