Place rack on top third of oven, add sheet pan + preheat to 475°; peel (or don't peel!) potatoes, cut into ½-inch sticks, mix with 2 tbsp oil + salt/pep; carefully remove hot pan from oven, spread fries onto pan + bake 15 min; flip fries over, reduce heat to 425° + bake 10-15 min more until golden

Meanwhile, heat lightly oiled skillet over high; cook burgers with salt/pep 3 min on one side; flip over, cook 2 min, then add 1 slice cheese to each burger; cover pan + cook 1-2 min more until cooked through, no pinkness remains + cheese has melted

Toast 2 buns until warm + golden; top burgers with thinly sliced red onion + lettuce—mmm that looks good