My daughter is doing the baked milk as well. She eats goldfish and cheezits at home, but I never send anything to school that looks like it has milk in it.
She eats buttermilk bread fine - it is a local brand.
Mainly I cook lots of muffins and freeze them. This website has a lot of recipes. I often add extra milk to the batter and sometimes stir in powdered milk for extra milk protein:
http://www.muffinrecipes.net/Most of the recipes are really easy - just mix all the ingredients together and bake.
I am currently getting up the courage to try her with pancakes - I am sure the first ones I give her will be very thin and very well cooked!