South Of The Border Dip
["1/2 c. chopped onion", "2 Tbsp. margarine", "1 lb. Velveeta jalapeno cheese spread, cubed", "1 (16 oz.) can chopped tomatoes, drained"]
["Saute onions in margarine.", "Add remaining ingredients; stir until cheese is melted.", "Serve hot with chips."]
["onion", "margarine", "tomatoes"]