Place the bottom half of the slider buns in the bottom of a prepared 9×13 baking dish. Spread the meat mixture in an even layer over the bottom buns. Sprinkle shredded cheese over the meat mixture and top with the remaining slider bun halves.
Mix melted butter and reserved seasoning mix until combined. Generously brush the mixture over the tops of the slider buns.
Cover with foil and bake at 350 for 15 – 20 minutes, removing the foil for the last 2-3 minutes of baking.