How to grill eggplant and tomato?
If all you have is a hammer, every problem looks like a nail...  ;-)

You have an infra-red oven and that is great to broil eggplant and tomato, but will not give you anything close to a grilled effect so:


If you want to broil:


slice up the veggies
add a sprinkle of oil and some nice fresh herbs on top
put them in the infra-red oven

If you want to grill them:


buy a grill



Please don't kill the messenger?  Pretty please???