If you've an urge to make your own pizza sauce, then the good news is that there are a lot of fairly simply sauce recipes out there. The easiest ones start with a foundation of tomato paste and add cheese and spices for flavor and aroma. For the more adventurous cook, there are also good recipes that are of medium difficulty and take slightly longer preparation times. But you can still make fresh and delicious sauce without spending hours at the stove.
This recipe for Easy Pizza Sauce requires no cooking at all, just mix ingredients and let stand so the flavors mix. It has all the ingredients of a traditionally flavored pizza sauce. This site has two other pizza sauce recipes that are quick and easy. What I liked most was that you can change the number of servings you need and automatically update the amounts on the ingredients. There's also a neat tool that converts from US measures to metric or vice versa.
There's a host of recipes at CDKitchen, ranging in preparation time from 30 minutes to about 2 hours and easiest to more difficult. If you want a wide range of options for seasoning and difficulty this is a good place to peruse the many choices.
They all look yummy but I tried only two, and one was the Easy Pizza Sauce with no cooking time involved. The flavor was very nice and the prep was temptingly easy, so I have to vote this one as my favorite.