1In medium bowl, mix flour, baking soda and salt. In large bowl, beat butter and both sugars with electric mixer on medium speed 3 minutes or until light and fluffy. Beat in vanilla and egg. On low speed, gradually add flour mixture to butter mixture, beating until blended. Stir in oats, coconut and pineapple. Cover and refrigerate dough 1 hour.
2Heat oven to 350°F. Onto ungreased cookie sheets, drop dough by tablespoonfuls 2 inches apart. Bake 10 to 12 minutes or until lightly browned. Cool 1 minute; remove from cookie sheets to cooling racks.