Finely dice the onion, green pepper and celery. Slice the vegan sausages into bite size pieces. Remove the thyme leaves from the stalk.
Heat a large pan on high heat and add the onions, green pepper, celery and vegan sausages, reduce the heat to medium and fry for 8 minutes stirring regularly to avoid them sticking. If they do start to stick add a tablespoon of water and loosen. Now add the spices, salt and uncooked rice and cook for 1-2 minutes stirring regularly. Add the veg stock, tin of tomatoes and thyme leaves and bring to the boil.
Once boiling, reduce to a simmer with the lid on to ensure the rice cooks and leave to cook for 30 minutes or until the rice is cooked and most of the liquid is absorbed. Stir in the lemon juice. Garnish with sliced scallion and enjoy!