Hi there. ((((hugs))))). That's a lot of allergies to deal with! I know how you feel, my daughter was intolerant to pretty much everything but a couple of foods for a long time!
Aside from just making batches and batches of her few safe foods, I did use the recipe database on occasion at kidswithfoodallergies.com. A great site, used to have to pay $25 a year to access everything, including the recipes, but I think they are no longer charging a fee (haven't visited in a long time). May want to check it out.
Good luck! How is your LO doing now? Did you figure out what caused the last reaction?