Season ground beef with salt and pepper, then form into 12 small patties slightly larger than your buns (they'll shrink while cooking).
Heat olive oil in a large skillet over medium-high heat. Cook patties for 3-4 minutes per side until fully cooked through.
Top each patty with a half slice of cheese during the last minute of cooking and let it melt.
Slice your buns in half and place the cheesy patties on the bottom buns.
On the top bun, insert two pretzel twists at the top for antlers by making small slits with a knife.
Use a tiny dab of ketchup or mayo to attach candy eyes and a red M&M or cherry tomato nose to create Rudolph's face.
Place the decorated top bun on the slider and serve immediately while the cheese is still gooey!