White Pizza with Brussels Sprouts and Red Onion

I am finally getting to the point with my cooking that I can use parts of previous recipes to try and figure out what might go well together. It's very rewarding! Tonight I made a white pizza with Brussels sprouts and red onion. I based this on two recipes (white pizza with artichokes, rosemary, and olives-- Real Simple, April 2013 edition, link not available yet ; broccoli rabe with pecorino tart ) and came up with the following: 1/2 gluten-free pizza dough, Gillian's , rolled out 50g reduced fat, 4-Italian cheese blend 30g grated parm 20g grated pecorino 1 oz goat cheese, crumbled 1/4 red onion 4-6 sliced green onions (greens only) roasted Brussels sprouts, 4 cups? fresh/dried rosemary, as desired Lightly drizzle with olive oil infused with hot red pepper Gillian's pizza says to cook at 375 for 18-20 minutes. I roasted the Brussels sprouts (at a higher temp, of course) in olive oil with salt & pepper, while I prepared the pizza; then...