Preheat the oven to 180⁰C. Wrap the corn in foil and place in the oven. Lay the sweet potato slices on a baking tray, drizzle with some oil, and a pinch of cayenne pepper then bake for 20-30minutes or until slightly browned.
Meanwhile, heat a fry pan on low-medium heat and cook onion for 2 minutes and then add the garlic and chilli and cook for a further 2 minutes. Add the beef mince, breaking it up and then add the tomato paste and paprika and cook until beef is browned. Stir in the black beans and cook for a further 3 minutes. Keep warm until the sweet potato is ready.
Layer the bowl with lettuce, capsicum, spring onion, sweet potato chips, corn, the beef mixture, avocado, fresh coriander, yoghurt and fresh chilli.