Creating Garlic Bread Alfredo Meatball Subs is straightforward when you follow these steps:

1. Preheat Oven: Preheat your oven to 375°F (190°C).
2. Make Meatballs: In a large bowl, combine the ground beef, breadcrumbs, Parmesan cheese, parsley, egg, minced garlic, salt, and pepper. Mix well and form into small meatballs (about 1 inch in diameter).
3. Bake Meatballs: Place the meatballs on a baking sheet lined with parchment paper. Bake for 20–25 minutes or until cooked through and browned.
4. Heat Alfredo Sauce: While the meatballs are baking, heat the Alfredo sauce in a small saucepan over medium heat until warmed through.
5. Prepare Garlic Bread: In a small bowl, mix the softened butter, garlic powder, and Italian seasoning. Spread this mixture on the hoagie rolls.
6. Toast Rolls: Place the rolls on a baking sheet and toast them in the oven for about 5–7 minutes until golden and crispy.
7. Assemble Subs: Once the meatballs are cooked, remove them from the oven. Place a few meatballs in each toasted hoagie roll. Drizzle with warm Alfredo sauce and top with shredded mozzarella cheese.
8. Melt Cheese: Return the subs to the oven for another 5 minutes, or until the cheese is melted and bubbly.
9. Serve: Remove from the oven and let cool for a couple of minutes before serving.

These steps will guide you in creating these incredible subs effortlessly.