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Skyr / Fage are not vegan but high protein
Seitan is high protein and vegan
So is soy stuff
Split peas / lentils are a win you can get easy heat packets if you want to keep stuff at work
Porridge with one spoon of peanut butter and one scoop of chocolate whey is a staple for me.I hate dry chicken breast myself blergh!!! And this macro fussery is not needed in your case. Eat your protein / fruit and veg and take it from there.
And eat some of what you like.
Basics first :)
See Hippy's post below, 2.2 is very high. He recommends 1.6 [though I stick to 2.0 when dieting, and it ain't fun...] but 0.4 gram per kg is really quite low.
Are you sure is it that low?
You can also try 1 gram per kg of your desired weight. If you know you carry 20 KG of pure lard, just deduce the lard. That leaves, say, 120 kg - 20 = 100 and 100 grams of protein in one meal is a bit of a A Sit.
But not impossible. eyes up chicken
Though you wrote also don't eat a lot of meat... yes, you can eat 100 grams with pulses/seitan/soy but I would not be able to digest that in one sitting I think.
A combination of a meat/fish and a pulse with some soy/seitan would do it though. But if you are already a picky eater, I think we need to identify first what you like to eat :)