Wash squash and cut off ends. Cook ... in the egg whites. Layer half the squash, ... cheese on greased casserole, then repeat with other ... hour or until set.
Stir sauce into slightly beaten egg yolk. Drain the squash and combine into sauce. Add ... in beaten egg white. Add onion. Top with ... 45 minutes at 350°F.
Ingredients: 7 (cheese .. flour .. milk .. salt ...)