1Heat oven to 425°. Grease bottom and sides of jelly roll pan, 15 1/2 x 10 1/2 x 1 inch, with shortening. Peel sweet potatoes; cut crosswise into 3/4-inch slices, halving larger sweet potatoes if necessary. Place potatoes in single layer in pan.
2Mix remaining ingredients in small microwavable bowl. Microwave uncovered on High 20 to 30 seconds or until hot. Stir oil mixture; brush over potato slices.
3Bake uncovered 25 to 30 minutes or until potatoes are tender.