Ingredients
1/2 c chopped onion
2T margarine
1 can mushroom soup
1/2 can milk
1/2 c drained, chopped canned tomatoes
2 c cooked noodles
1 c cooked or frozen peas
2 6 oz cans tuna, drained
1/2 c grated cheese
Preparation
In a saucepan, cook onion until tender. Stir in remaining ingredients. Pour into a shallow baking dish. Bake at 400 for 20 minutes or until hot. Top with cheese and let it melt.