I also found this recipe in Hungry Girl but it ws called ( YUM YUM BROWNIE MUFFINS )
1 box devil's food cake mix and 1 can of pumpkin ( 15 oz )
Don't add anything else that may be mentiioned on the box, such as eggs, oil or water. The mixture will be very thick, and you will be tempted to add in other things to make the batter smoother. DO NOT DO THIS AS IT WILL RUIN EVERYTHING! Place batter into muffins tins ( or mini muffins tins ) lined with paper or sprayed with a nonstick spray. Bake at 400 degrees for 20 minutes. Makes 12 regular or 36 mini muffins.
After they have baked and cooled off they will be sort of dry. But after they have been stored in a air tight container they become very moist. I like to cut the muffin in half and put cool whip that is fat free in the middle of the muffin.
( 1 Muffin or 3 minis = 180 Calories, 2.5g Fat, 37 Carbs, 2.5g Fiber, 2.5g Protein ) The cool whip would add extra calories.