Creating Bourbon BBQ Bacon Cheeseburger Meatball Subs is a straightforward process when you follow these simple steps:

1. Preheat Oven: Preheat your oven to 400°F (200°C).
2. Mix Meatball Ingredients: In a large bowl, combine ground beef, ground pork, breadcrumbs, egg, minced garlic, onion powder, salt, and black pepper. Mix until well incorporated.
3. Form Meatballs: Shape the mixture into 1-inch meatballs and place them on a baking sheet lined with parchment paper.
4. Bake Meatballs: Bake in the preheated oven for 20-25 minutes until browned and cooked through.
5. Prepare Bourbon BBQ Sauce: In a saucepan over medium heat, warm the bourbon BBQ sauce just until heated through.
6. Combine Meatballs and Sauce: Once meatballs are cooked, remove them from the oven and immediately toss them in the warm BBQ sauce until evenly coated.
7. Assemble Subs: In each toasted sub roll, place a generous amount of BBQ-coated meatballs, then top with crumbled bacon and shredded cheddar cheese.
8. Melt Cheese: If desired, place the assembled subs on a baking sheet and briefly broil until the cheese is melted and bubbly.
9. Garnish and Serve: Garnish with chopped parsley if desired, then serve immediately while warm.

Following these steps will lead you to create mouthwatering subs that will have everyone coming back for seconds!