Boil a pot of salted water and cook the protein spaghetti according to package directions until al dente.
While the pasta cooks, heat the extra virgin olive oil in a large skillet over medium-high heat.
Add the ground turkey to the skillet, breaking it into small crumbles with a spatula, and cook until browned and no longer pink.
Stir in the minced garlic, sea salt, black pepper, and dried oregano, cooking for 1 minute until the aromatics are fragrant.
Pour in the marinara sauce and bring the mixture to a gentle simmer for 3 to 4 minutes to allow the flavors to meld.
Add the fresh baby spinach to the skillet and stir constantly until the leaves are just wilted into the sauce.
Drain the cooked pasta and toss it directly into the turkey sauce skillet until every strand is well coated.
Portion the spaghetti into a bowl and sprinkle with nutritional yeast for a savory, dairy-free finish.