Preheat oven to 350 Sift flour baking soda and salt onto waxed paper Cream margarine and brown sugar with electric mixer at medium speed in large bowl until fluffy Beat in eggs 1 at a time until fluffy Stir in vanilla Add flour mixture 13 at a time until well blended Stir in rolled oats rice cereal and walnuts Drop by teaspoonfuls about 1-inch apart onto large cookie sheets lightly sprayed with nonstick cooking spray Bake 10 minutes or until cookies are firm and lightly golden Remove to wire racks cool
