Step 1: Prepare the Ingredients. Start by gathering all your ingredients. Finely dice the onion and mince the garlic. Measure out your sauces and spices.
Step 2: Cook the Ground Beef. In a large skillet, heat the olive oil over medium heat. Once hot, add the ground beef. Cook until it’s browned and fully cooked, breaking it apart with a spatula (about 5-7 minutes).
Step 3: Add the Veggies. Once the beef is browned, add the diced onion and minced garlic to the skillet. Sauté for about 3-4 minutes until the onion becomes translucent and fragrant.
Step 4: Mix in the Sauces. Stir in the ketchup, Worcestershire sauce, yellow mustard, tomato paste, chili powder, and salt. Mix everything thoroughly until the beef is well coated with the sauce.
Step 5: Add Water and Simmer. Pour in the water and let the mixture simmer for about 5 minutes. If it seems too thick, feel free to add more water as needed.
Step 6: Assemble the Sliders. Preheat your oven to 350°F (175°C). Slice the Hawaiian rolls in half, creating a top and bottom for each slider. Place the bottom halves in a baking dish. Spoon the Sloppy Joe mixture generously onto each roll. Top with shredded cheddar cheese.
Step 7: Prepare for Baking. Place the top halves of the rolls over the cheese. In a small bowl, melt the unsalted butter and brush it over the tops of the sliders. Sprinkle sesame seeds on top.
Step 8: Bake. Bake in the preheated oven for about 15 minutes, until the cheese has melted and the tops are golden brown.
Notes
Use lean ground beef (90/10) to keep the sliders from being too greasy. Don’t rush the simmering step; it’s essential for flavor development.