So I have a pizza tomato sauce recipe that called for adding 6 tablespoons of tomato paste during the cooking. Unfortunately, due to being very disorganized, I only realized half way through cooking that I didn't have any tomato paste in the house and the local 24h corner shop didn't stock any.
I carried on cooking the tomato sauce topping without adding the tomato paste and then put it in the fridge overnight. Should I pick up some tomato paste and add the "finished" product to the frying pan, heat up and put in the tomato paste or should I just leave it. Does the tomato paste add anything bar depth of flavour?