Heat a little oil in a large pan over medium heat
Add chopped onion and garlic, and cook until softened
Add minced beef and cook until browned, breaking it up with a spoon
Drain excess fat if needed
Stir in tomato paste and cook for 1 minute
Add chopped tomatoes, salt, black pepper, and dried herbs
Simmer for 15 to 20 minutes, stirring occasionally
Meanwhile, cook spaghetti in salted boiling water until al dente
Drain the spaghetti
Toss the spaghetti with the sauce or serve the sauce on top
Top with grated cheese if desired