01 - Set oven to 400°F (200°C). Line a baking sheet with parchment paper.
02 - Bring a saucepan of salted water to a boil. Cook fettuccine or linguine until just al dente. Drain well, toss with olive oil, and set aside.
03 - Combine ground beef, breadcrumbs, Parmesan cheese, egg, minced garlic, onion, milk, parsley, salt, pepper, and oregano in a large mixing bowl. Mix gently until just incorporated.
04 - Form mixture into 16 even balls. Arrange on prepared baking sheet. Bake for 15 minutes, until browned and cooked through. Allow meatballs to cool slightly.
05 - Reduce oven to 350°F (180°C).
06 - Crisscross each meatball with several strands of the cooked pasta, leaving a small area exposed for eyes.
07 - Place the wrapped meatballs in a baking dish. Spoon marinara sauce around the meatballs, avoiding coverage.
08 - Bake uncovered for 10 minutes until warmed completely.
09 - Remove from oven and apply candy eyes or sliced olives. Serve while hot.