What I used for the marinade: https://therecipecritic.com/worlds-best-steak-marinade/#wprm-recipe-container-56321
Cooking the steak was pretty straightforward, I cooked it for 4 no on both sides.
And for the kale, I simply tore 4 leaves of kale along with about 7 foraged blackberries and threw it in the marinade I used for the steak, I simmered it for 10-15 minutes.