Banana Oatmeal Cookies with Banana Frosting Recipe

3/4 c Butter Flavor Crisco
1 c Sugar, brown, firmly packed
1 Egg
1 c Bananas, mashed, ripe
- 2 to 3 medium
1 3/4 c Oats, quick, NOT instant or
- old fashioned
1 1/2 c Flour, all purpose
1 ts Salt
1 ts Cinnamon
1/2 ts Baking soda
1/4 ts Nutmeg
1/2 c Walnuts, coarsely chopped