Known as tuna-pea wiggle to some, this family-friendly tuna noodle casserole tends to be made with canned soup and whole milk, which means high fat and sodium. We remedy this by making our own creamy mushroom sauce with nonfat milk thickened with a bit of flour. Look for whole-wheat egg noodles--they have more fiber than regular egg noodles (but this dish will work well and taste great with either).