Cook the meatballs according to the package directions.Add the Alfredo sauce and pesto to a small pot or pan and stir together. Heat it over medium/low heat, or just until heated through.
Spread some of the sauce on the insides of each roll, like you would mayonnaise or butter. Place 4 meatballs in a roll and drizzle them with more sauce. Fold and tear each slice of provolone roughly in half and place 2 halves on top of each sub to cover the meatballs.
Place the prepared subs onto a baking sheet and cook them in the oven at 450 for about 5 minutes, or until the cheese is melted and the roll is lightly toasted.