Mmmm ... I love grilling too. Especially for veggies!
I will have to try the roasted veggies in the convection oven. Oh yeah.
Convection ovens cook faster than regular ovens. For instance, the other night I cooked a baked potato in about 35 minutes. In my regular oven, it would take about an hour and a half. Just don't use foil to wrap food in, or it slows down the timing. There are some recipes in the booklet it came with, I will post some when I can
I am not sure why it makes food more delicious ... but it does. Anything that can be baked in an oven can be done in the convection.