3. Add the grated parmesan cheese (reserve about 2 tbsp for garnish) and toss well. Continue stirring until the cheese looks slightly melted and is sticking to the beans, about 2-3 minutes. The green beans can be served as a hot or cold side dish.
Option #1: To make this into a complete meal, add cubed cooked ham as a final step, once the cheese has melted. About 100 g of ham per serving. Alternatively add prepared bacon cut into bite-size pieces.
For a one pot vegetarian meal add crumbled feta or fermented tofu
Option #2: To make this into a complete vegetarian meal, add either feta crumbled into large chunks at the very end, just before serving.
Option #3: Or to make this into a complete vegan meal, substitute out the butter and parmesan for 2 extra tbsp. of either olive, avocado or coconut oil and add fermented tofu at the very end just before serving.