My mother lived through the depression and was a vegetarian for health reasons. She raised us vegetarians also. She added eggs to everything someway, somehow. She was always looking for a way to enhance the protein content of every thing we ate. Even when protein meat substitutes became common, she added egg or cheese to everything. She has been gone 12 years and still when I cook, I find myself thinking "Mums would have added egg to that".
How can vegetarians eat eggs or drink milk? So evil. :p