Heat the oven to 200C, gas 6. Slice 3 sweet potatoes into 1cm circles. Toss the potato circles in a mix of 2tbsp olive oil and 2tbsp Mexican seasoning to coat thoroughly.
Roast for 10-15 mins until cooked through. Once slightly cooled, top with spoonfuls of guacamole, soured cream with chives and tomato salsa. Scatter over coriander to serve.
Notes
If you fancy it, you could scatter cheese over them too for an extra bit of flavour.