Two versions in one recipe - roasted carrot ribbons for a firmer bite, blanched tomato halves for a softer lox-like texture. Marinate overnight for the best flavour. Keep the 'salmon' in its marinade in an airtight container in the fridge for up to 4 days. Serve on toast or bagels with vegan cream cheese, as a starter, or as a fish replacement in salads and sushi bowls.