Dinner with Dr. Sanjay Gupta : a 639-calorie dinner of tilapia, asparagus, tomato salad and a MegaBrownie.
http://www.cnn.com/2007/HEALTH/03/23/chasinglife.recipes/index.html
Personally, I'm not convinced about Megamuffins; maybe if I think of it as a bulky composite vitamin/mineral supplement, and make the savory version instead of this, the taster in my head which compares cost to benefit (calories to pleasure) will be convinced to try them.