Preheat oven to 350! Brown the Beef: In a large skillet, brown the ground beef over medium heat. Drain any excess grease.
Add the dried onion and allow to cook for a minute. Now, add the beef bouillon, water, black pepper, soy sauce, and steak sauce to the skillet. Stir to combine and bring to a simmer. Let the sauce simmer for around 10-15 minutes, or until the sauce has cooked down to your liking.
Assemble the Sliders: Slice the Hawaiian rolls in half. Spread a generous amount of the savory beef mixture on the bottom halves of the rolls. Top with cheese.
The Buttery Mustard Bliss: In a small bowl, whisk together the melted butter, mustard, minced onion, and Worcestershire sauce. Brush this delicious concoction over the tops of the assembled sliders.
Cover the sliders with foil and bake for about 10-15 minutes. Uncover and bake for an additional 2-5 minutes or until tops are golden and crispy.
Flavortown Here You Come! Serve your Maid-Rite Sliders hot and devour!