Greek-Potato-Tomato Skillet
["6 potatoes, peeled and sliced", "3 onions, sliced", "4 Tbsp. olive oil", "1/4 c. fresh parsley, chopped", "4 medium tomatoes, peeled (optional) and diced or 1 (8 oz.) can tomato sauce"]
["Saute potatoes and onions in olive oil until golden and tender, not brown.", "Discard excess oil.", "Add parsley, salt and tomatoes.", "Cook, covered, over low heat until potatoes are tender."]
["potatoes", "onions", "olive oil", "fresh parsley", "tomatoes"]