PREHEAT oven to 375° F.
COMBINE flour, baking soda and salt in medium bowl. Combine butter, granulated sugar and brown sugar in large mixer bowl; beat until creamy. Add pumpkin, egg, orange juice and orange peel; beat until combined. Gradually add flour mixture; beat until combined. Stir in nuts. Drop dough by rounded teaspoon onto ungreased baking sheets.
BAKE for 12 to 14 minutes or until edges are set. Remove to wire racks to cool completely. Spread each cookie with about 1/2 teaspoon Orange Glaze.
FOR ORANGE GLAZE:
COMBINE 1 1/2 cups sifted powdered sugar, 2 to 3 tablespoons orange juice and 1/2 teaspoon grated orange peel in medium bowl until smooth.