I found this recipe on the side of a box of Publix bran flakes.  It's been adjusted for variation, but still a go-to favorite.

Ingredients

1 egg, lightly beaten
1 cup light buttermilk (1 tablespoon lemon juice, rest low fat milk)
one small applesauce cup
1 3/4 cup bran flakes
1 cup AP flour
1/3 cup packed Splenda Brown sugar
1 tablespoon baking powder
1/2 tablespoon cinnamon
1 cup fruit (blueberry, peach, pear, raisin are some suggestions - Frozen work great, too, just thaw before adding)

Flax seed

Optional:  1/2 cup nuts (pecans, walnut, etc.)

Directions

There is no oil in this recipe, so oil muffin pan or use muffin paper. 

In one bowl, mix first four ingredients, let sit for 5 minutes

In other bowl (smaller) combine next four ingredients, then mix with bran flake mixture.

beat on low until combined

fold in fruit and nuts, if using

Use 1/3 cup in dozen muffin pan

bake at 400 degrees for 26 minutes