1 1/2 c. uncooked macaroni
1 (15 oz.) can peas
1 (10 1/2 oz.) can cream of mushroom soup
1 sm. can tuna
Cheese (I use Velveeta)

Cook macaroni according to directions. Drain. Add tuna, peas, soup, and cheese, if desired. Mix together and put in 8x8 inch casserole dish. Put 4 slices of cheese on top. Bake at 350 degrees for about 15 minutes or until cheese melts and is bubbly.