Place rack in top third of oven, add sheet pan + preheat oven to 475°; peel (or don't peel!) 2 potatoes, cut into ½-inch sticks, mix with 3 tbsp oil + salt/pep; carefully remove hot pan from oven, spread fries onto pan + bake 25 min; flip fries over, reduce heat to 425° + bake 10 min more until golden

Meanwhile, heat 1 tsp oil in a large skillet over med-high; add all beef to pan, break into large chunks + sear undisturbed 4-5 min; flip meat over, season generously with salt/pep + fave spices, then break into small pieces; cook 3-5 min until fully cooked + no pinkness remains; reduce heat to med-low + carefully mix in ½ cup sauce to warm through (beware of splatters!)

Toast 4 buns until warm + golden

Divide beef between buns + top with 3-4 pickle slices (or more!)