Spanish Squash
["1 onion, sliced", "salad oil", "1 can tomatoes or fresh tomatoes, peeled, sliced and cooked 1 minute", "1 lb. sliced zucchini", "salt and pepper", "1 bay leaf"]
["Cook onion in a little oil until tender, but not brown.", "Add tomatoes, zucchini and salt and pepper to taste.", "Cook slowly, adding small amount of water if needed.", "Add bay leaf, if desired."]
["onion", "salad oil", "tomatoes", "zucchini", "salt", "bay leaf"]