Creating cheeseburger sliders is straightforward when you follow these steps:

1. Preheat the Oven: Preheat your oven to 350°F (175°C). This ensures that your sliders cook evenly.
2. Prepare the Beef: In a large mixing bowl, combine the ground beef, garlic powder, onion powder, salt, and pepper. Mix until well incorporated.
3. Form the Patties: Shape the meat mixture into small, thin patties that will fit your slider buns. Aim for about 12 patties.
4. Cook the Patties: Heat a skillet or grill over medium heat. Cook the patties for about 4-5 minutes per side until fully cooked.
5. Add Cheese: In the last minute of cooking, place a slice of cheese on each patty so that it melts.
6. Assemble Sliders: Cut the slider buns in half. Place the bottom half of the bun on a serving platter. Layer the cooked patties on the buns.
7. Add Toppings: Spread mayonnaise, ketchup, and mustard on the tops of the patties. Layer with pickles, lettuce, tomato, and onion as desired.
8. Top it Off: Place the top half of the buns on the assembled sliders.
9. Bake Sliders: Place the assembled sliders on a baking sheet and bake in the preheated oven for about 5-10 minutes for the buns to warm and slightly crisp up.
10. Serve Hot: Remove from the oven and serve hot with extra condiments on the side.