Made some tomato sauce with canned tomato, roasted garlic, red pepper and zucchini. It came out a little acidic. I added a little sugar, which helped. But I can do more next time, this site has some good tips. I think adding carrots could really help as well (adding sweetness). I made sauce a few months ago with some carrots and it was much better.
Maybe try Emeril’s roasted garlic sauce (adding carrots of course).