My son's favorite treat is banana muffins.  Here's my milk free recipe:

1 C. Sugar
1/2 C. canola oil
2 eggs (substitute works fine)
3 large bananas mashed
1 tsp. vanilla 
1/2 tsp. salt
1 tsp. soda
1 1/2 - 2 C. Flour  (I use 1 1/2 heaping cups)

Cream together sugar and oil, add eggs.  Mix well.  Stir in mashed bananas
and vanilla.  Add dry ingredients.  Mix well. Bake at 375° for 15 minutes.
Makes 12-15 muffins.

My son's class has eighteen kids, so I usually double the batch and it
works great.