Potato, Spinach, and Polish Sausage Casoulet

A simple casoulet begun as a stirfry of diced polish sausage, diced potato, spring onion, quartered button mushrooms, chopped green beans. I used a drizzle of olive oil. 

Cooked for about an hour at a medium heat. Then I added boiling water, along with some vegetable stock, plus chopped spinach, and the herbs sage and tarragon. Cooked for a further forty-five minutes.