Follow these straightforward instructions to create perfect Baked Cheeseburger Sliders:

1. Preheat the Oven: Preheat your oven to 350°F (175°C).

2. Prepare the Beef Mixture: In a large mixing bowl, combine the ground beef, Worcestershire sauce, garlic powder, onion powder, salt, and black pepper. Mix until well combined but avoid overmixing.

3. Shape the Burger Patties: Divide the beef mixture into 12 equal parts and form them into small patties that will fit the slider buns.

4. Cook the Patties: Heat a non-stick skillet over medium heat. Cook the patties for about 3-4 minutes on each side until browned but not fully cooked, as they will continue baking in the oven.

5. Assemble the Sliders: Cut the slider buns in half horizontally. Lay the bottom halves on a baking sheet. Place the cooked patties on the buns, then sprinkle shredded cheddar cheese over the patties.

6. Add the Top Buns: Place the top halves of the buns over the cheese-covered patties.

7. Bake: Bake in the preheated oven for 20-25 minutes, until the cheese is melted, and the sliders are heated through.

8. Mix the Sauce: While the sliders bake, mix the mayonnaise, ketchup, and mustard in a small bowl.

9. Build Your Sliders: Once baked, let the sliders cool for a few minutes. Spread the sauce on the inside of the top buns. Add shredded lettuce, sliced tomatoes, and pickles if desired.

10. Serve Warm: Cut the sliders apart and serve them warm to enjoy the melty goodness!

These steps will result in wonderful Baked Cheeseburger Sliders that will impress your guests or make a simple family dinner extraordinary!