I have been really allergic to both milk and soy for years, as well as lactose intolerant, so I've been missing out on this holiday favorite for quite some time. Inspired by the recipe "I can't believe there's no lactose in this green bean casserole!" I made a version that is a little simpler and took it a step further by eliminating soy. My family thought it was even better than the traditional recipe! Additional allergy/diet options: To make this recipe totally vegan/free of lactose, use margarine instead of butter. To make it gluten free, use gluten free all-purpose flour mix, available in most grocery store natural or allergy food sections. Caramelize some onions and put them on top instead of the french-fried variety. This is also a delicious option for those who want to avoid egg. To make sure this dish is soy free, be extra careful when you check the labels for french fried onions, as some brands use soy protein or soy flour in their batter. Enjoy!