Souper Tuna Noodle Bake - cooking recipe

Ingredients

1/2 c. chopped onion
2 Tbsp. butter or margarine
1 can cream of mushroom soup
1/2 c. drained, chopped, canned tomatoes
2 c. cooked noodles
1 c. cooked peas
2 (7 oz.) cans tuna, drained and flaked

Preparation

In saucepan cook onion in butter until tender.
Put in rest of remaining ingredients.
Pour in a 2-quart baking dish.
Bake in a 400\u00b0 oven for 20 minutes.
Stir.
Top with sliced cheese.
Bake until cheese melts.