Hamburger Sliders with Cheese

Instructions

1. Preheat your oven to 350 degrees F. 
2. In a skillet over medium heat, cook the ground beef and DRY onion soup mix.* 
3. When the meat is browned, drain the fat. 
4. Transfer the ground beef to a bowl and let cool a bit.
5. Meanwhile, remove the rolls from the package and discard the cardboard.
6. Spray a large sheet of aluminum foil generously with nonstick spray.
7. Use a serrated knife to slice the rolls in half so that they have a "top" and a "bottom." Do not separate them into individual rolls. Place the "bottoms" onto the aluminum foil that has been sprayed.
8. Stir the mayonnaise and cheddar cheese into the ground beef.
9. Spread the beef mixture all over the bottom half of the rolls. Replace the top half of the rolls to make one giant sandwich.
10. In a small bowl, melt 3 tablespoons butter. Add the minced onions, Worcestershire sauce, and dijon. Stir it together, then use a pastry brush to coat the top of each roll with the butter mixture.
11. Wrap the sliders in foil; fold up the one that it's sitting on, then spray more foil and cover the top. 
12. Place the foil-wrapped sliders directly on the middle oven rack. (No sheet pan is necessary. It makes the bottoms get too crispy.)
13. Bake for about 30 minutes. 
14. Remove from the oven and serve with plenty of dill pickles!
15. I don't think these sliders need any sort of dipping sauce honestly, but if you are feeling like you want to dip, mix together 1 part mayo and 1 part ketchup. Serve with the sliders.