Inspiring vegetarian recipes
Try our vibrant veggie dishes, from meat-free lasagne to vegetable curry and vegetarian chilli
Cook the potatoes in boiling salted water until just tender.
Meanwhile, cook the onion in 1 tbsp olive oil until soft, then stir in the harissa and stock and bring to a simmer. Halve the cooked potatoes and add to the stew with the cherry tomatoes. Simmer for 10 minutes until the tomatoes start to break down a little.
Oil and season the tuna then griddle for 2 minutes on each side. Stir the coriander into the stew then spoon into shallow bowls. Sit the fish on top and sprinkle with more coriander to serve.