As far as I know, it's all about the ingredients, not so much the form. I make dishes all the time and have had no problem with weight loss. Of course, I'm not at the point you are and still have a bit of fat to lose... I have heard of people removing dairy to lose the last bit of stubborn fat, so in a dish like the one you mentioned, you could easily use a can of unsweetened coconut milk in place of the heavy cream for a similar effect. Otherwise, I don't think there is anything holding you back from "cooking" instead of just having plain/boring things.