Making these Bourbon BBQ Bacon Cheeseburger Meatball Subs is straightforward if you follow these steps:

1. Preheat Oven: Preheat your oven to 400°F (200°C) and prepare a baking sheet lined with parchment paper.
2. Mix Meatball Ingredients: In a large bowl, combine ground beef, breadcrumbs, Parmesan cheese, parsley, egg, garlic powder, onion powder, smoked paprika, salt, and pepper. Mix until just combined.
3. Shape Meatballs: Form the mixture into meatballs, approximately 1.5 inches in diameter, and place them on the prepared baking sheet.
4. Bake Meatballs: Bake the meatballs in the preheated oven for 20-25 minutes, or until cooked through and golden brown.
5. Prepare BBQ Sauce: While the meatballs are baking, heat the bourbon BBQ sauce in a small saucepan over medium heat until warmed through.
6. Combine Meatballs and Sauce: Once the meatballs are cooked, remove them from the oven and carefully toss them in the warm BBQ sauce, ensuring they’re coated evenly.
7. Prepare Hoagie Rolls: While the meatballs cool slightly, slice the hoagie rolls or sub buns and toast them lightly in the oven, if desired.
8. Assemble Subs: Divide the meatballs evenly among the hoagie rolls, and then sprinkle the chopped bacon and shredded cheddar cheese on top.
9. Melt Cheese: Put the assembled subs under the broiler for 1-2 minutes, or until the cheese is melted and bubbly.
10. Garnish: Remove from the oven and garnish with fresh cilantro or parsley, if using.

Following these easy steps will lead you to create the amazing Bourbon BBQ Bacon Cheeseburger Meatball Subs guaranteed to impress!