I think we did have the cinnamon roll at Gaston's. We split that and some fruit between the four of us as a snack mid-morning. I recall that we liked what we got from there.
My son was sick on that trip. He was 23 months old, and was so irritable that first day there. It surprised us, because he absolutely loves Mickey Mouse, and he didn't seem as excited as we expected when we went to see the talking Mickey. Later that day, we took him to the clinic and learned he had an ear infection. After a few days on antibiotics, he started to enjoy our trip as it neared the end. I remember I was so happy to see him enjoying the dole whip that day while we waited for the parade to start.
They sell popcorn buckets, and the refills are (I think) $1.50. The one I purchased was a Cinderella carriage.
Mickey rice crispy treats and Mickey ice cream bars are good. My husband says the mickey bars taste like overpriced eskimo pies.
My husband has had the banana bread and do nuts from the Main Street Bakery.
I know it might be late for you to score a ressie at BOG, but their cupcakes are wonderful. My daughter and I love the lemon cupcakes, but we've also tried the strawberry cream cheese cupcake and the Master's cupcake with the grey stuff (it's delicious. Don't believe me. Ask the dishes).
I think I recall getting some type of fruit cobbler at the Columbia Harbor House.