Preheat oven to 400F and lightly grease a medium sheet pan.
In a large bowl, combine ground turkey, pork, breadcrumbs, 1 tablespoon pesto, egg, garlic, salt, and pepper. Scoop mixture into 1-in meatballs and place on prepared sheet pan.
Bake meatballs at 400F 15-20 minutes until meatballs register 165F. Toss remaining 1/2 cup pesto with meatballs and set aside for a moment.
Place split hoagie buns on a separate medium sheet pan and broil on high 1-2 minutes until a very light golden brown.
Divide meatballs between hoagie buns and top with cheeses. Broil sandwiches on high an additional 1-2 minutes until cheese is melted and golden brown. Top sandwiches with fresh basil and serve warm. Enjoy!
Notes
Storing InstructionsMeatball sandwiches are best if served immediately after assembly.