I suppose you could physically attach to an additional display/monitor, or cast it (as you mentioned) if you have a wifi connected display (HDTV) already setup.
This should be very doable. What other displays/TVs do you have available?
I have an acer 27in monitor just sitting there. I also have in the same room a toshiba fire tv which is connected via wifi. I also have an additional gaming PC next this gaming PC.