If you feel your spaghetti sauce is lacking in the biff, bam, pow department -- as even the best grocery store spaghetti sauces tend to be -- you can always make your own marinara sauce or else ...
Once you get the hang of making basic tomato sauce, you can improvise by adding bacon ... 1/4 tsp salt, 160 grams spaghetti, 5 “shiso” leaves 1. Finely chop garlic and onion.