Pierce potatoes with fork and cook according to your micro wattage, about 20 mins. Set aside.
Place bacon in 2-quart casserole dish, cover with paper towel and cook on high until crisp, according to your microwave, 6 to 8 mins. Remove from dish and set aside.
Reserve 4 Tbs drippings. Add onion to drippings. Cook on high 2 mins. Add flour, stir. Cook on high 1 min or until onion is transparent.
Stir in remaining ingredients. Cook on high 4 to 5 mins, or until mixture thicken.
Peel and slice potatoes. Add to hot mixture. Stir to coat potatoes with sauce. Crumble bacon ocer top. Serve warm.