Shepherd'S Pie
["2 c. chopped ham or turkey", "1 onion", "3 c. mashed potatoes", "2 c. tomatoes", "1 Tbsp. oil"]
["Brown onion in oil; add turkey or ham and tomatoes.", "Simmer for 15 minutes.", "Layer the mixture, beginning and ending with mashed potatoes.", "Dot with butter, bread crumbs and/or cheese and bake for 30 minutes at 350\u00b0."]
["ham", "onion", "potatoes", "tomatoes", "oil"]