Whip egg in a bowl for 30 seconds to 1 minute. Pour matzo meal into a separate bowl.
Dip tempeh slices in egg, then coat in matzo meal to coat completely.
Heat oil in a skillet to 350 degrees F (175 degrees C). Fry breaded tempeh until golden brown, 3 to 5 minutes. Transfer to a plate lined with paper towels to cool briefly.
Transfer tempeh to a bowl and add enough Buffalo wing sauce to cover. Cover bowl and shake until evenly coated. Serve with blue cheese dressing.
