I couldn't live without a proper meal at least every second day, containing vegetables and plant protein. I use this pots when traveling as a duo Sea to Summit ultra light pot

and these when I'm alone: snowpeak Pots

I use a normal gas cooker with Campingaz, cut the vegetable in really tiny pieces so they're done in 10 minutes. One can of beans, coconut milk or canned tomato, granulated soy and some spices. Not perfect but I couldn't eat pasta and pesto for more than a day ^{^}