Preheat your oven to 350°F (175°C).

In a bowl, mix ground beef with salt and pepper. Form into small patties (about 2 ounces each).

Heat a skillet over medium-high heat with a splash of oil. Cook each patty for about 3 minutes per side until browned. Add cheese during the last minute to melt.

Slice slider buns in half. Place bottom halves on a baking sheet, add one patty per bun, top with pickles, ketchup, and mustard.

Cover with bun tops and bake for about 5 minutes until warmed through.