Preheat oven to 350°F (175°C).
In a bowl, mix ground beef with garlic powder, salt, and black pepper.
Press the seasoned beef evenly into a 9×13-inch baking dish.
Bake for 20 minutes, then drain excess liquid.
Slice the Hawaiian rolls horizontally and place the bottom half in a lined baking pan.
Add the cooked beef layer evenly over the rolls.
Heat olive oil in a skillet, sauté diced onions until soft and translucent.
Spread onions over the beef, then add cheese slices.
Place the top half of the rolls over the sliders.
Mix all glaze ingredients in a bowl and brush generously over the rolls.
Bake for another 20 minutes until golden and melty.
Slice and serve hot—your Cheeseburger Sliders Recipe is ready.