Cook shells as directed to al dente in well salted water. Drain and set aside.
Make filling, combined ricotta, mozzarella, parmesan, and Italian seasoning in a bowl. Season to taste with salt and pepper and then fill the cooked shells with a heaping tablespoon of the ricotta filling.
Prepare the meatballs - combine ground turkey, breadcrumbs, egg, shallot, garlic, Italian seasoning, and parmesan cheese in a bowl. Roll the mixture into 1" balls and cook in a large pan drizzled with olive oil. Rotate until all sides are browned and the turkey meatball fully cooked through.
In a large oven safe pan, pour a layer of tomato sauce to coat the bottom. Add the meatballs and stuffed shells to the pan, alternating until full. Drizzle with a bit more sauce and top with extra mozzarella cheese if desired.
Bake in the oven for 15-20 minutes at 350 degrees, until the sauce and cheeses are bubbling. Remove from the oven and garnish with fresh parsley and basil.
Recipe by DomestikatedLife at https://domestikatedlife.com/2022/04/01/stuffed-shells-and-meatball-bake/