Amybo is a non-profit open source community project working on protein fermentation in an effort to reduce the carbon intensity of food production, as well as improve climate resilience as things like crop failures become more common.
The project is currently focussed on the low-cost distributed science aspect, but their website says they want biotechnologists, chefs, coders, creatives, engineers, enthusiasts, environmentalists, makers, medics, microbiologists, and nutritionists. So basically... Just lots of people.
They're still in the early stages but looks like a fun project to get involved in.
Definitely! If you want nutritional food, focus on the stuff that's really cheap and easy to grow and makes the best use of land anyway, whether you're doing it or consuming it after other people have done so: fresh veggies. Greens, squashes, tomatoes, various tubers, etc. (varies depending on your region, of course).
I was just talking about the focus on protein. It is absolutely not the thing to worry about if you're interested in "nutritious". You're being completely counter-productive if you do that. It leads opposite to the goal you just described.