Both my brother M and sister-in-law K are vegetarians (but are not raising their kids vegetarian). They both decided (at about the same age - ~14) to become vegetarian, and K also has a texture aversion to eggs. Unless they are completely mixed into something she can't even swallow them.

But they also have the bonus of loving all kinds of food. For a pickier eater, it can be very difficult to find something she'll like. Soups are good, in that you can find almost a ton of different textures - and a lot of pureed vegetables make good soup bases - and can seem creamier, even with no cream added. I've made a corn chowder with fresh corn (stripped the ears myself) that was in a base of pureed fresh corn as the base, and it was sweet and fresh and delicious.

Smoothies are a good idea - You can add almost anything to a yogurt/fruit base - chocolate, peanut butter, etc. And with some protein powder included you can boost her health a little.

I am very texture/scent oriented, myself. And kind of a picky eater as well. I've grown out of some of that, but I still have to modify almost anything I order in a restaurant - mostly to leave something off or out.

That she likes to cook is a bonus for you.

:D