Zucchini Casserole(Serves 6 To 8)  
["6 c. zucchini, sliced", "1 large onion, sliced", "salt and pepper to taste", "garlic powder to taste", "1 c. sour cream", "2 Tbsp. flour", "2 egg yolks", "2 egg whites, beaten stiff but not dry", "3/4 c. grated sharp Cheddar cheese"]
["Place zucchini and onion in well-buttered 2-quart casserole. In a large bowl mix the sour cream, flour and egg yolks.", "Fold in the egg whites.", "Pour this mixture over the seasoned vegetables and top with the grated cheese.", "Bake at 375\u00b0 for 35 minutes.", "A hearty yet light presentation of this versatile member of the squash family.", "Zucchini, a form of summer squash, has only 5 calories per ounce!", "It provides vitamin A, C and part of the B complex, along with iron, calcium, niacin, riboflavin and thiamine.", "Adding cheese or milk to zucchini recipes raises the protein and calcium levels."]
["zucchini", "onion", "salt", "garlic", "sour cream", "flour", "egg yolks", "egg whites", "Cheddar cheese"]