Start by mixing mayonnaise, sweet chili sauce, tamari, ketchup, and grated garlic in a bowl. This sauce is the secret to tying all the flavors together, so don’t skip it! Taste and adjust the seasoning to your liking—it should be tangy, sweet, and slightly spicy.
Heat a skillet over medium-high heat and sauté your ground meat until browned. Season it with Gochujang, Worcestershire sauce, onion powder, garlic powder, salt, and pepper. Stir well to ensure the flavors are evenly distributed. Once cooked, set it aside to cool slightly.
Slice the Hawaiian rolls in half horizontally and place the bottom half on a baking sheet. Layer with cheddar cheese slices, the cooked meat mixture, a generous drizzle of the special sauce, shredded spicy cheddar, and pickles. Top with the other half of the rolls.
In a small bowl, mix softened butter with minced garlic, fresh herbs, grated Parmesan, and sesame seeds. Brush this mixture generously over the top of the rolls, making sure to coat every nook and cranny.
Cover the sliders with foil and bake in a preheated oven at 400°F for 15 minutes. Remove the foil and bake for another 10–15 minutes until the tops are golden brown and the cheese is perfectly melted. Slice and serve hot!