Basically you can use any amount of these that you want. I went light on the balsamic because I didn't want it to overpower everything else. Cut the vegetables into uniform-ish pieces (1/2 inch thick, 2 inches square/round), mix everything else (minus 1/2 the parm) in a large bowl and then toss the veggies in the bowl.
I preheated the oven to 425 at this point (why do all recipes say to preheat at the beginning? I usually end up with a fully heated oven for 30 or more minutes before I need it!) Then I layered everything (vertical layers, not horizontal) in a glass pan and spread the rest of the parmesan on top.
I happened to have too much for my pan, so I crammed the rest into a little ramekin to make an individual portion. This one I topped with parmesan mixed with panko because it sounded delicious.
I pulled the ramekin out after 25 minutes and the big pan after 30. You could see the juices boiling in the bottom which always makes me happy. SCIENCE! I let them set for a bit (because they were scary hot) while I grilled up some chicken marinated in olive oil, lemon juice and some spices.
This is going to be made over and over again. I am absolutely in love with this. I feel like I was a little light on the flavors, turns out I could have gone heavier with the balsamic and spices, but even as is, I just loved this. The big dish was beautiful, and the strong parmesan flavor was perfect for the vegetables. But panko and parmesan in the small dish was a revelation. It browned up beautifully and tasted nice and crunchy with the softened veg.
I do think for this fresh herbs would have been stronger and more interesting. I have been thinking of getting a kitchen herb garden, but my kitchen window above the sink has a tiny sill and is painted shut. I will continue working on a solution for this.