Preheat your grill or skillet over medium-high heat.
In a bowl, combine ground beef, salt, and pepper.
Form the beef into small patties, about 2 inches in diameter.
Cook the patties for about 4-5 minutes on one side.
Flip the patties and place a slice of cheese on top.
Cook for an additional 3-4 minutes until cheese is melted.
Slice slider buns in half and toast lightly.
Assemble each slider with a patty, ketchup, and pickles.
Secure with a toothpick and serve immediately.
Enjoy your delicious cheeseburger sliders!