01 -
Preheat the oven to 200°C. Line a sheetpan with aluminum foil and lightly spray with vegetable oil.
02 -
In a large bowl, mix ground beef, finely chopped onion, minced garlic, Worcestershire sauce, salt, and pepper until evenly combined. Avoid overmixing to maintain tenderness.
03 -
Evenly spread the meat mixture onto the prepared sheetpan, pressing to create a uniform layer.
04 -
Place the sheetpan in the preheated oven and bake for 15-20 minutes until the internal temperature reaches 70°C.
05 -
While beef cooks, combine mayonnaise and ketchup in a small bowl to create the sauce.
06 -
Remove sheetpan from oven and carefully drain any accumulated grease.
07 -
Distribute cheddar slices evenly over the cooked beef layer. Return to oven for 2-3 minutes until cheese is melted and bubbly.
08 -
Allow beef and cheese to rest for several minutes. Cut into 12 equal-sized portions to match slider buns.
09 -
Place each beef and cheese portion on a slider bun. Top with a dollop of sauce, shredded lettuce, tomato slices, and pickles.
10 -
Serve immediately while warm and enjoy.