Instead of Spaghetti Sauce, there are a lot of Tomato Pastes that are Core. Just add a little water to it and heat it up.
I don't know about Chili, but Lentil soup is Core. That is pretty similar to satisfy Chili cravings.
I have been a WW Lifetime member for years. I am on Maintenance now, but I had put about 10 lbs on a few months ago and Core took it right off. Now I kind of switch back and forth between Flex & Core.