I know how you feel. I am 25 and was diagnosed just after my two year old son was born. The day I was told I went through all my cupboards and the fridge and pulled out everything I could no longer eat - it turned out to be the most depressing day of my life. There was no food left for me to eat and I was so hungry. I ended up loosing so much weight that it became a concern - I didn't know what I could eat and I didn't know how to make gluten free meals. Anyway, undoubtedly it will take a while for your daughter and you and your family to get used to the gluten free lifestyle.
I get most of my recipes from searching for gf meals online (there are thousands) and from gf cookbooks that I have found at Barnes and Noble. The two authors I have books by are Robin Ryberg and Bette Hagmann. I'm sure there are others but I have yet to try them.
There are some great stores also. The store Against the Grain in Taylorsville is 100% gluten free. Everything in the store is safe to eat and they have everything from chicken nuggets to waffles to different flours to use to treats to 72 hour kits! It's a fabulous store. The address is 2292 W 5400 S. The owner's daughter has celiac and is about the same age as yours. Another store is Good Earth on 9th East in Sandy (it's across from a school but I don't know the south). They have a gluten free isle in the store and there is also some good rice bread called Charlottes that is refrigerated. (You'll find that all rice bread is dry but Charlottes seems to be the best so far.) Wild Oats actually doesn't have much for celiacs so I don't frequent that store much.
I am being totally honest here, I am the only one in my family that is diagnosed with celiac and I never feel included when I go to my parents house for dinner. My mom always seems to make dinner a huge stressful ordeal and usually I end up bringing half of my own dinner because she doesn't want to learn to make gf foods for me or she doesn't have a gf brand of dressing or something. (And she has actually told me she doesn't want to learn.) Since I was diagnosed two years ago, the only times we have been to her house for dinner is once during the holidays whereas before I was diagnosed, we had dinner with them once a month. The fact that everyone in my family constantly tells me how sorry they am for me and how they hope they never have to go through what I go through makes me relapse into the depressed stage. Unfortunately, because of the way my family has handled this, I feel completely left out and many times I start hating myself for having the disease. I'm telling you this so you can avoid these frustrations and feeling of lonliness with your daughter. My personal opinion is in order to make your daughter feel "normal" make one meal for everyone - don't make a seperate meal for her. That works for some people, but you should wait until she is comfortable with her new diet and doesn't feel "different" when she's not eating the same things as everyone else. All of the meals I make are gf and my son and husband eat the same thing I eat - once again, it makes me feel "normal". The meals are just as good as meals with gluten and they tend to be much healthier because everything is basically from scratch. If other members of your family complain about eating "weird" food, make sure they understand that your daughter needs to feel included and not looked upon like she has some gross disease. Of course there are things like pizza and rolls and such that they will want to eat that she can't but she also needs to know that her siblings shouldn't have to give up everything they love just because of her diet either. Hopefully she will be better than me, but it took me a long time to understand that I can't make my husband not eat girl scout cookies just because I can't - he just has to leave them at work so I don't see them! As far as desserts are concerned, I have a few recipes, you can find some one the web or from books, but since she won't be able to eat dessert with everyone, my mother-in-law found a way to solve that problem - she makes a big batch of gf brownies, cuts them up and freezes them. Then when I come over, she can pull one out and thaw it. I have to say, the difference between my mom and my mother-in-law is huge. I hate going to my mom's house for dinner, but my mother-in-law goes all out just for me. She tries her hardest to make the entire meal gluten free (she'll even make gf muffins instead of rolls) and if she doesn't make a gf side dish, she'll make a seperate side dish for me! I can't tell you the difference it makes to know that she cares and makes the effort and that no one in my husband's family complains about it. I really do feel normal at her dinner table. Sorry that was long, but I guess I really have to stress that she feel included in her family meals since she may not get it anywhere else.
As far as child support groups, go to gfutah.org and there is a link for Raising Our Celiac Kids. They have summer camps and activities for kids. There is also a Getting Started link that has steps for starting a gf diet. There is also information about monthly meetings held at St. Marks's hospital for the celiac support group - they are really great to go to. Anyway, I'm sorry this was so long - there is more to say but I don't want to bore you. If you have any questions or would like some recipes, you can call me at ###-###-#### or email me at ____@____.com. I am home every day with my son (and I do daycare) except Monday and Tuesday nights I am at school. If I don't hear from you, good luck and I hope your daughter gets feeling better soon!