Follow these simple steps to prepare your cheeseburger sliders effortlessly:

1. Preheat Your Oven: Start by preheating your oven to 350°F (175°C).
2. Prepare the Beef Mixture: In a large bowl, mix the ground beef, salt, pepper, garlic powder, and onion powder until well combined.
3. Shape the Patties: Divide the beef mixture into 12 equal portions and shape them into small patties.
4. Cook the Patties: In a skillet over medium-high heat, cook the patties for about 3-4 minutes per side or until browned and cooked through.
5. Add Cheese: Place a half slice of cheddar cheese on each patty about one minute before you finish cooking to ensure it melts.
6. Prepare the Buns: Cut the slider buns in half, placing the bottom halves on a baking sheet.
7. Assemble the Sliders: Once the patties are done, place each on the bottom half of the buns. Add lettuce, tomato, and pickles as desired.
8. Top with Buns: Place the top halves of the buns over the assembled sliders.
9. Bake: Lightly brush the tops with melted butter (optional) and bake in the oven for about 10 minutes until the buns are toasted.
10. Serve: Remove from the oven and let cool slightly before serving with ketchup and mustard.

By following these straightforward steps, you’ll have delicious cheeseburger sliders ready to go in no time!