If you're already convinced it's a good deal for you, the adult, remember it's only $10.99 for the 7 year old. Even if you share the adult TS meal (which you wouldn't have to), you'd easily make up the cost of the child plan with her beverage at dinner ($2), her extra CS meal ($6-which you could also share for breakfast or lunch), and her snack ($4). So any TS meals she does eat would be "free."
You asked if you could do it cheaper by doing your one TS meal per day, making breakfast in the room, and bringing snacks for lunch. Probably, but not by much, and any savings would likely be wiped out by the groceries you'd have to buy for breakfast and lunch. Going to one buffet or family style restaurant, where sharing isn't allowed, would put you over the $50 a day, too. (Examples: Boma (buffet) is $26A/$12C and Garden Grill (family style) is $28A/$13C. By the time you add tax and tip, you're close to if not over the $50 cost of the dining plan.)
Suggestions for your gluten-free dd: Disney is
very accomodating to all sorts of different dietary restrictions and food allergies. Review the menus at allearsnet.com, and come up with a few places that have meals that are (or can easily be made) gluten free. If there are a few TS restaurants that you really want to try, but don't see anything acceptable on the menu, call Disney Dining and ask now and, if they say no problem, then call again day or two before your reservation. I'd be surprised if there were any TS restaurants where she couldn't eat.
CS will be harder (though maybe the new grilled, chilled chicken kids' meal for lunch would work). What I'd recommend is using her child's credit for breakfast at your resort's food court. Most will have something like a kid-sized breakfast platter with eggs, meat and potatoes (or would allow you to make substitutions to come up with something acceptable) that would likely be big enough for the two of you to share. Then use your adult CS credit for lunch, perhaps someplace like Cosmic Ray's, with its 1/2 rotisserie chicken or chicken and bbq rib platter, which would be plenty to share.
And for dinner, use both your TS credits. Buffets and family style meals may be a good choice. Since there's so much variety, it's a little easier to find some things that will appeal to both of you and that you can both eat. Also, read the articles on Celiac Disease at allearsnet--here's the link:
http://www.allearsnet.com/din/guestceliac.htm
Just noticed that now, or I would have skipped my long diatribe and just posted this link, which says everything I did only much better.
