Heat oven to 450ºF.
Cut thin lengthwise slice off bottom of each potato; discard. Place 2 wooden spoons on opposite long sides of 1 potato on cutting board. Cut potato crosswise into 24 thin slices, stopping when knife hits spoons. Repeat with remaining potatoes.
Microwave on HIGH 12 to 14 min. or until potatoes are almost tender. Place in foil-lined 13x9-inch pan; brush evenly with 3 Tbsp. dressing. Bake 15 min. or until potatoes are tender. Remove from oven. Heat broiler.
Insert bacon pieces alternately with cheese slices between potato slices. sprinkle chives over potatoes. Drizzle with remaining dressing.
Broil, 4 inches from heat, 2 to 3 min. or until topping is lightly browned. Cut in half.
Serve this potato side dish with a crisp, mixed green salad or hot steamed vegetable and cooked lean meat, poultry, or fish.
The wooden spoons are used to help prevent you from cutting all the way through the potatoes.