Cook noodles in boiling salted water for about 2 minutes. Cover, remove from heat, and let stand for about 10 minutes. Meanwhile, combine mushroom soup, milk, tuna and peas. Rinse noodles with warm water and drain well. Fold noodles into tuna mixture; pour into a greased 1 quart casserole. Sprinkle with bread crumbs and bake at 350°F for about 30 minutes.