For the sausage casserole, heat the vegetable oil ... Slice the inner Savoy cabbage leaves (from the pesto ingredients) and stir them into the stew. Stir well and bring the mixture to the boil ...
Fry the onions and sausage for a few more minutes and then ... Meanwhile, very finely chop the cabbage (alternatively, buy a cabbage-shredding machine from the market as we did).