01 - Combine ground beef with salt, pepper, garlic powder, and onion powder in a large bowl. Mix gently to avoid overworking the meat.
02 - Divide mixture into 8 equal portions. Shape each into a flat patty slightly wider than the slider buns to account for shrinkage during cooking.
03 - Heat vegetable oil or butter in a large skillet or grill pan over medium-high heat until shimmering.
04 - Place patties in the hot pan and cook for 2-3 minutes per side until well-browned and cooked to desired doneness.
05 - Add a cheddar slice to each patty during the final minute of cooking. Cover the pan to trap heat and melt the cheese completely.
06 - Split slider buns in half and lightly toast in the pan or under a broiler for added texture.
07 - Spread mayonnaise and ketchup on toasted buns. Place cheesy patties on bottom buns, then layer with onion, pickles, tomato, and lettuce. Top with bun crowns.
08 - Arrange sliders on a serving platter and serve while hot for optimal texture and flavor.