I have started a new community, meal_makeovers. It's for devising low-cal versions of old favorites. I've been posting in it regularly, and will continue to do so until there's more activity. So add it to your friends list if you'd like to see the recipes! So far, they include 128 calorie meatballs, 176 calorie pasta with clam sauce, and so on.
For an overview of the recipes check out the list of tags.