Step 1 Spray a large saucepan with oil and place over medium heat. Add onion, capsicum, chilli, garlic and taco seasoning. Cook, stirring, for 5 minutes. Add lentils and stir well. Add tomatoes, beans and stock and bring to the boil. Reduce heat, cover and simmer gently for 30 minutes.

Step 2 Add mushrooms and sweet potato to saucepan and stir. Simmer gently, uncovered, for a further 25 minutes, until vegetables are tender. Stir in chocolate and coriander. Cook gently for another 5 minutes, until sauce is thickened. Serve with rice and top with sour cream, avocado and extra chopped fresh coriander, if desired.