Preheat & Prep: Preheat oven to 350°F (175°C). Lightly grease a 9x13-inch baking dish.
Cook Proteins: In a large skillet, cook and crumble the sausage until browned. Drain all grease and set aside. Cook bacon until crispy, crumble, and set aside.
Make Eggs: In a bowl, whisk eggs, milk, salt, and pepper. Cook in a large non-stick skillet over low heat to form a single "egg sheet," or bake in a parchment-lined 9x13 pan for 15 mins until just set. Ensure eggs are slightly undercooked and moist.
Assemble: Slice the slab of rolls in half horizontally. Place the bottom half in the prepared baking dish.
Layer: Build your sliders in this order: American cheese slices (bottom), sausage crumbles, bacon crumbles, the egg sheet, and finally the shredded cheddar. Place the top half of the rolls on.
Glaze: In a small bowl, whisk together the melted butter and maple syrup for the glaze. Brush generously over the tops of the rolls, letting some drip down the sides.
Bake (Stage 1): Cover the dish tightly with aluminum foil and bake for 15-20 minutes, until heated through and cheese starts to melt.
Bake (Stage 2): Remove the foil and bake for another 5-7 minutes, until the tops are beautifully golden brown and the cheese is bubbly.
Serve: Let the sliders rest for a few minutes before cutting along the seams and serving immediately.