Here is one my mom used to make. I don't know the nutritional info, but the only fat is from the nuts and chocolate chips, and you might even be able to cut those back a bit. They are very easy and very good.
My mom used to make these cookies every year at Christmas. Sometimes she would sprinkle them with red or green sugar before putting them in the oven.
Bake While You Sleep Cookies
2 egg whites - beat until foamy
2/3 c. sugar - add VERY gradually, beat until stiff
1 tsp. vanilla - beat in
1 c. mini chocolate chips
1 c. chopped nuts
Drop by spoonful on foil lined sheet. Preheat oven to 350 degrees. Put cookies in oven and turn oven off. Let stand until morning. DO NOT open oven during this time. (At least 6-8 hours). Can be frozen.
Less rhetoric, more cowbell!