Add quinoa and ⅔ cup water to a small saucepan and bring to a boil. Cover and simmer for 20 minutes until quinoa is tender. Remove from heat, fluff with a fork and cool completely.
In a large bowl combine the quinoa, pork, eggs, salt, pepper and nutmeg. Mixture will be very wet. Shape into 12 round balls.
Preheat oven to 425°F. Grease a 9x13-inch baking dish. Space the meatballs evenly in the pan and bake until meatballs are evenly browned, about 10-12 minutes.
Remove from the oven and add the marinara sauce to the baking dish. Reduce oven temperature to 350°F and bake meatballs until cooked all the way through (internal temperature should read 165°F), about 10-15 minutes more.
Top with Parmesan cheese and basil before serving.