Wash potatoes, prick with fork. Sprinkle salt and drizzle olive oil onto cookie sheet. Roll potatoes in salt and olive oil. Bake at 350 degrees for 1 1/2 hours or until tender. Allow potatoes to cool slightly. Slice potatoes in half lengthwise and scoop out pulp, leaving skins intact. Mix remaining ingredients in bowl. Spoon mixture in potato skins. Sprinkle with salt and pepper. Return to oven and bake at 350 degrees for 15 minutes or until heated through.