Preparation
- Preheat the oven to 220°C, fan 200°C, gas 7.
- Toss the sweet potato wedges in the oil and roast in the oven for 25-30 mins, tossing occasionally, until lightly golden and softened. These will add a good bit of bulk to the dish.
- Meanwhile, mix together the beans, sweetcorn, tomatoes for added colour, pepper for some lovely crunch, onion and lime juice for a bit of extra zing. Season to taste.
- Once the sweet potato is roasted, top it with the zingy bean and tomato salsa. Sprinkle with cheese, if using, and grill on high for 2-3 mins. Top with dollops of smashed avocado and the lime zest to serve.