In a large mixing bowl, add the ground beef, garlic powder, onion powder, smoked paprika, Worcestershire sauce, salt, and pepper. Gently mix with your hands or a spatula until the ingredients are just combined—being careful not to overmix as it can toughen the meat.
Divide the seasoned beef mixture into 8 equal portions. Shape each portion into mini patties, making them slightly larger than the slider buns, as they will shrink during cooking.
Heat the olive oil in a large skillet over medium-high heat. Once the oil is shimmering, carefully place the patties into the skillet. Cook for about 3-4 minutes on each side, or until they develop a nice sear and reach your preferred level of doneness. (Use a meat thermometer if desired to check: 160°F for medium well.)
During the last minute of cooking, top each patty with a slice of sharp cheddar cheese. Immediately cover the skillet with a lid to trap the heat and melt the cheese thoroughly.
While the patties finish cooking, prepare the slider buns. Lightly toast them in a separate skillet or under a broiler until they're golden brown and slightly crisp, which helps avoid sogginess.
To assemble the sliders, take the bottom half of each toasted bun and spread a thin layer of mayonnaise over it. Place a cheesy beef patty on top, then add a few slices of fresh red onion and a handful of arugula or spinach for a pop of color and flavor. If you like extra crunch or heat, add pickles or jalapeños before topping with the other half of the bun.
Serve the sliders immediately while they're warm and gooey. Enjoy your mouthwatering, savory beef and cheddar creations!
Notes
Serve on a rustic wooden board lined with parchment paper for a delightful touch.