01 - Preheat a grill or skillet over medium-high heat.
02 - Combine ground beef, salt, black pepper, and garlic powder in a bowl. Mix gently to avoid overworking.
03 - Divide the beef mixture into 8 equal portions and form each into a patty slightly larger than the slider buns, accounting for shrinkage during cooking.
04 - Brush the cut sides of the slider buns with melted butter. Toast them, cut side down, on the grill or skillet until golden brown. Set aside.
05 - Place beef patties on the grill or skillet. Cook for 2 to 3 minutes per side, or until they reach the desired doneness.
06 - During the last minute of cooking, place a slice of cheese on each patty and cover to allow it to melt.
07 - Build each slider by placing a cheesy patty on the bottom bun, topping with dill pickle slices and optional red onion, and adding optional ketchup and mustard.
08 - Cap with the top buns and serve immediately.