1 (8 oz.) pkg. small shell macaroni
2 (6 1/2 oz.) cans tuna, drained and flaked
1/2 c. mayonnaise
1 c. celery, chopped
1 c. onion, chopped
1/2 c. green pepper, chopped
1 (10 oz.) pkg. frozen peas
1/2 tsp. salt
1 (10 1/2 oz.) can cream of mushroom or celery soup
1/2 c. milk
1/4 c. grated Parmesan cheese
2 tbsp. butter
1/2 c. seasoned bread crumbs

Cook macaroni according to package directions. In large bowl, combine macaroni, tuna, mayonnaise, celery, onion, green pepper, and peas. Blend in soup, milk, and salt. Place in a large or deep casserole dish. Combine Parmesan cheese, bread crumbs, and butter and mix until crumbly, put on top of casserole. Bake at 400 degrees for 30 minutes.