Gather spaghetti, ground meat, breadcrumbs, egg, grated Parmesan, garlic, onion, salt, pepper, Italian seasoning, olive oil, marinara sauce, and parsley
Mix ground meat, breadcrumbs, egg, Parmesan, minced garlic, finely chopped onion, salt, pepper, and Italian seasoning in a bowl
Form the mixture into meatballs
Heat olive oil in a pan over medium heat
Brown the meatballs on all sides
Add marinara sauce to the pan
Simmer the meatballs in the sauce until cooked through
Boil salted water in a large pot
Cook the spaghetti until al dente
Drain the spaghetti
Toss the spaghetti with a little sauce if desired
Serve the spaghetti topped with meatballs and sauce
Garnish with parsley and extra Parmesan if desired