Tempting Tuna Casserole

Yield:	5 Servings
Categories:	Pasta, Seafood

8	oz	San Giorgio medium shells
10 3/4	oz	Cream of mushroom soup/Campbells H.C.
1/2	c	Nonfat sour cream
3	tb	1% milk
3/4	c	Frozen green peas; thawed
9	oz	Solid white tuna; drained
1/2	c	Cheddar cheese, lowfat; shredded