Yes I am! Dd was asking for pizza the other day, so I had a go tonight and it was a roaring success!
I cut up a skinless chicken breast and cooked it in a small roasting tin in the oven, and at the same time made a tomato sauce (tinned toms) then 5 mins before the end of the chicken's cooking time I poured the tom sauce over it, put some sliced tinned pineapple pieces in, and covered it in cheese. Then I toasted some gluten free bread and spooned the chicken / pineapple / toamto / cheese mixture over the top of the toast. It didn't go soggy as it was only assembled at the last minute.
I'm really proud of myself!