Tuna Noodle Casserole

1 (12oz) package egg noodles, cooked and drained
2 (6oz.) cans tuna, drained
1C forzen peas
1 (4oz.) can mushrooms, drained
1 can condensed cream of mushroom soup
1/4 C grated Parmesean cheese
1 1/2 C milk
salt and pepper to taste
1/2 C crushed Ritz crackers
3T butter, melted
In a large bowl, combine noodles, tuna, peas and mushrooms. Combine soup,cheese, milk salt and pepper, pour over noodle mixture and miwx well. Pour into a greased 9X13 pan. Combine butter and crackers, sprinkle on top. Bake uncover for 45 minutes.