Preheat oven to 400°F. Prick tops of potatoes with a fork, spray with cooking spray and season with salt and pepper. Roast potatoes 1 hour, or until tender.
Arrange bacon on a slotted broiler pan or wire rack-lined baking sheet.
Combine sour cream with chives, Worcestershire, horseradish, salt and pepper.
Remove potatoes from oven and cool 5 minutes to handle.
Transfer bacon to oven and crisp, 15 minutes. Chop into 1 inch pieces.
Halve potatoes lengthwise and scrape insides into a bowl. Place the potato shells back into the oven until crispy, about 5-6 minutes. Mash potato insides with butter pats and mix with sour cream sauce.
Fill potato shells with filling then place back into the oven until warmed through, about 4-5 minutes.
Top with sliced rotisserie chicken. (If chicken is not warm, warm in microwave or in a small skillet with some chicken stock.)
Toss greens with onions, lemon juice and EVOO. Season with salt and pepper.
Serve potatoes topped with lettuce, bacon, blue cheese and some cherry tomatoes.
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