Cook spaghetti according to directions on package.
Meanwhile, heat oven to 400°F. Line baking sheet with foil. Place nuggets on prepared baking sheet, and bake 8 minutes. Spoon 1/2 cup marinara sauce over nuggets. Top with shredded mozzarella; sprinkle with Parmesan cheese. Bake nuggets 4 minutes more.
Heat remaining marinara sauce, and toss with cooked pasta. Top with baked chicken nuggets.