Wow, a whole thread with my name on it!
Wheat, dairy, and egg... what I personally would do, is take it completely out, all traces, etc. (the minor ones too, actually) and then see if she can tolerate "traces of" or "shared on the same equipment as". Because if you don't take it all out, then you don't know for sure if there are any missed culprits. That's how I do it anyway, to make sure there's a clean slate.
Buy yourself some alternate grains... buckwheat, sorghum, tapioca starch, sweet potato flour. If it's just wheat/gluten, then you may be able to do ready-mix "gluten-free flour blends". I buy mine from Bob's Red Mill or Barry's Farm. I make buckwheat waffles that are safe from those (can also be made into pancakes). Sometimes I make a double batch and freeze the leftovers, for an easy toaster-reheat when I'm short on time. Serve with maple syrup and bacon or sausage (Jones pork sausages are free of those). We also do hot buckwheat cereal or Cream of Rice for a hot breakfast. There's also Rice chex (w/ rice milk) and several other cereals that will be safe for you. Corn was missed on both my kids' tests so I'd be wary of substituting corn for everything. There's rice pasta (Tinkyada is a good brand, be careful not to overcook it). You may be able to get rice tortillas to make sandwich wraps. I have recipes on my blog. KitchenCanadian is Jacqueline's blog and she's got recipes on there too. And there are a couple of allergy recipe threads in this forum (go to the top in resources and there's a link).
1 Tbs. milled flax + 3 Tbs. hot water, either let it sit for 10 minutes or microwave on high 1 minute. It equals one egg in baking. It works for a lot of things as a binder. Sometimes you need to add a little more baking powder, depending if the egg is acting as a leavener as well.
When first starting out, it's easier to make simple meals. Roast a chicken, make some rice, and steam a veggie (gravy can be thickened with sorghum flour and sweet potato starch). Or make a pot roast, sweet potato fries (shake with olive oil, bake at 375 for 40 minutes, flipping halway), and a salad. Baked salmon (spread with olive oil, sprinkle with salt & pepper, bake at 425F for 15 minutes), baked potato, and sauteed spinach.