The crunchy protein source that leaps to mind is nuts. Does she like nuts?

The smooth protein source that comes to mind is yogurt. Does she like yogurt?

I'm thinking here more in terms of "feed her so that she doesn't pass out at karate" than "what should the Ihingers have for dinner." Even if we came up with an entire recipe book of fabulously Delia-friendly recipes, that doesn't mean Rob or Fiona would eat any of them. ;-)