I do that at first but also add some chopped garlic, a couple of oxo cubes, dried mixed herbs and a bit of sugar to take the sharpness away. Occasionally I might add some tomato ketchup, tomato purée and a splash of red wine if ever there’s any left but one thing I always do is add is a finely diced carrot or two - diced bits no bigger than a match head to give the sauce some bite. I always do a batch cook and freeze two or three double portions to be eaten at a later date. I did one only last week.Also suggest you try my quick budget healthy spaghetti Bolognese (ish)
Fry mince and chopped onions together (fat from mince cooks onions) until mince is just brown.
Stir in two cans can of chopped toms