I camp cook a lot and have a few different setups for situations like this.

Build yourself a twig stove out of soup cans! Progresso or those other ready to eat cans fit a normal size soup cans in them and they rest on the inner lip so it suspends the inner can. Drill holes at in a pattern that does the same function as a solo stove. You can look up tutorials on it easily. Fashion a primitive grate from something from the hardware store and you have a second burner! Shouldn't cost more than $5 and it gives a nice rustic feel. You have to feed them twigs so flame control is a little annoying, but it's perfect for boiling water, which is exactly what you're going to want to do because pasta is your best friend when you're cooking for a group! Pre make your own pasta sauce and meat balls, sear them in the pan and dump the sauce in and let it all come up to temp. A little fresh parsley and parm on top and you're golden.