What to put on my Rosh Hashanah pizza?
I like goat cheese with all the things you mention, so I'd play around with that idea, though I don't know if you keep Kosher and if you're serving meat. Maybe use some caramelized onions and roasted bell peppers for toppings. You could make your marinara base a little spicy with red pepper flakes to contrast with the sweetness of the vegetables.
Maybe some chopped sweetened pecans, dried cranberries, orange rind, and a hint of red pepper flakes. If you are not serving any meat with it, you could drizzle some thinned honey-sweetened creme fraiche on it just before serving.
What a neat idea -- is the crust going to be a flat round challah? :o)
oooo brie/goat cheese/blue cheese (the good stuff) with apples and honey would be awesome. maybe some herbs like rosemary. My mom used to make (and she should again!) a flat bread with brie, figs, rosemary and crispy panchetta...but for the Rosh, I'd say no panchetta. The figs and Brie with the salty flatbread were wonderful...I'd imagine the same would be for apples, even though figs are sweeter. She modified a recipe from cooking light.
or you could go to moroccan jewish route with some dated, preserved lemons, and olives.
or you could go the russian jewish route with some roasted beets and dill...but that might not be that tasty :)
Nuts aren't too traditional for Rosh Hashanah. The numerical equivalent of "nuts" equaling "sin" and all that.
How about a pomegranite molasses/juice reduction as a base and grated apples tossed with brown sugar? Then maybe some sliced dates on top. You did mean dessert pizza, didn't you?