I have never heard of nettles being used in saag/palak paneer type dish. This is very creative and it looks delicious. It has me wondering when the last time was I actually saag/palak from mustard greens or spinach.......well it's been ages.
I too mix foraging with store bought greens to make a palak-ish dish. Amaranth is still the go-to free leafy green around these parts. When/if we make it to the USA, I'd love experiment with stinging nettles. Nice work chef, love this dish, just throw me a chapati.