This is a really good 'on season' dish:

Boil chicken breasts (4-5), while this is cooking, bake about 4-5 sweet potatoes. Chop up the chicken. In a separate bowl, mash the sweet potatoes.
Mix the chicken and sweet potatoes in a bowl and add some splenda (to taste)- just enough to give it a little sweetness. Add a few sprays of zero cal spray butter. Bake for about 20-30 minutes at 275.

I usually make enough to last for the week and divide up into portions for my meals.