Preheat oven to 400 degrees. In a medium bowl, combine flour, salt, baking soda and cinnamon; set aside.
In a large bowl, cream together butter and sugar until light and fluffy. Add the egg, scrape down the sizes of the bowl; add vanilla. Fold in oats, ginger, and nuts. Divide and roll dough into 30 to 36 balls. For best results, moisten hands when rolling dough. Place 2 inches apart onto a cookie sheet lined with parchment paper. Press down slightly to help cookies spread. Bake 12 to 15 minutes or until golden brown. Cool completely before removing from pan.