Use this recipe as a filling for Dessert Crepes.
Peel pineapple; cut into quarters lengthwise. Cut out core; cut each quarter in half lengthwise. Cut each piece crosswise into 1/4-inch-thick slices; set aside.
Heat butter in a large skillet over medium heat. Add pineapple; toss to coat with butter. Sprinkle with brown sugar; toss to coat. Cook, stirring occasionally, until pineapple is lightly browned, about 8 minutes. Transfer to a bowl; keep warm until ready to serve.