Place first 9 ingredients (using only 1 egg whisked) in a bowl and mix to thoroughly combine.
Using a tablespoon or small ice cream scoop, roll 1 tablespoon of turkey mixture into balls.
Heat 1 tbsp of olive oil in a sauté pan over medium heat and cook the turkey meatballs for 5 minutes or until golden on the outside.
Boil the spaghetti, al dente according to package directions, drain, toss with 1 tbsp olive oil and cool thoroughly.
Toss the spaghetti and remaining whisked egg in a bowl to combine.
Divide the spaghetti between 12 regular muffins cups (about 1/4 cup each) and press down to make nests.
Place a meatball into each spaghetti nest, top with 1 tablespoon marinara sauce and sprinkle with 1 tablespoon parmesan cheese.
Bake in 350 degree oven for 20 minutes.
Remove spaghetti nests from oven, sprinkle with 1 tablespoon of mozzarella cheese and bake for 5 minutes or until pasta starts to become golden and cheese has fully melted.
Sprinkle with reserved lightly dried parsley and serve.