Gather spaghetti, ground meat, breadcrumbs, egg, garlic, onion, salt, pepper, Italian seasoning, olive oil, tomato sauce, and grated cheese
Mix ground meat, breadcrumbs, egg, minced garlic, finely chopped onion, salt, pepper, and Italian seasoning in a bowl
Shape the mixture into meatballs
Heat olive oil in a pan over medium heat
Brown the meatballs on all sides
Pour tomato sauce into the pan
Simmer the meatballs in the sauce until cooked through
Boil water in a pot and add salt
Cook the spaghetti until al dente
Drain the spaghetti
Serve the spaghetti topped with meatballs and sauce
Add grated cheese if desired