Hi,
My 15 month old is also allergic to milk, eggs & wheat. There are a few things we have tried. He can have soy milk, & Parkay butter substitute in the blue squeeze bottle. I get alot of baby foods & add rice cereal, sugar, vanilla soy milk, & the parkay. He really likes that especially w/sweet potatoes. He can have Tyson brand Chicken nuggets. Any kinds of fruits & vegetables, rice, beans. You can season it with the parkay & salt. I make him creamed potatoes with the soy milk & parkay. Whole Foods has alot of soy stuff he can have: soy ice cream, soy pudding, etc. They also have an egg replacer you can use for baking. You can get the egg replacer online if you don't have a whole foods nearby. Gerber apple wagon wheels, lots of cereals, chicken(not breaded), ham, turkey, beef, spaghetti (read the label on the sauce). For fast food he can have wendys & burger king's fries, NOT Mcdonalds they have milk in them. That's all I can think of right now.
Hope that helps!
H.