Preheat the oven to 200C (400F).
Heat the oil in a heavy-based casserole or large saucepan on a medium heat. Add the onion, carrot, celery and garlic and cook for 5–7 mins, until softened.
Add the mushrooms and cook for 5 mins, until they release their juices and start to brown.
Stir in the tomato puree and the miso, Marmite or Worcestershire and cook for 1 min, then add the beans, thyme and bay leaves (if using).
Pour in the wine and water, season generously with salt and pepper and bring to a gentle simmer.
Lower the heat and let the stew cook, uncovered, for 30-35 mins, until nicely reduced.
To make the dumplings, whisk the flour, baking powder and a pinch of salt in a large bowl.
Add the butter, then rub it into the flour with your fingertips until it resembles breadcrumbs.
Mix in the grated cheese and parsley with a butter knife.
Pour the milk into the dry ingredients, then stir with the butter knife to form a dough.
Turn out on to your clean worktop, then shape into a log and cut into eight pieces.
Remove the bay leaves from the stew. If you’ve used a casserole, arrange the dumplings on top. Otherwise, transfer the stew to a large baking dish, then arrange the dumplings on top.
Bake, uncovered, in the preheated oven for 20-25 mins, until the dumplings are golden and cooked through.
To serve, divide the stew and dumplings among four bowls. Top each one with a little extra grated cheese and parsley.
