Hi there and welcome!
I don't think you need to make your daughter separate meals. DH and I started SB together and I had 2 college age boys at home at that time. Usually I would make a main dish for everyone and extra side dishes for them (bread, potatoes, etc) Depending on your daughter's tastes it isn't really that much extra work.
For lunch I stick to salads or soups mostly, but you can also eat leftovers. Or freeze single portions of your dinner leftovers for lunch.
Like Jennifer said, check out the recipe section plus the Getting Started thread under the FAQs. Also this post has some good ideas you could adapt for lunch ideas:
http://www.3fatchicks.com/forum/sout...ml#post5321524