Drain the tuna and pluck it into small pieces. Clean and wash spring onions and cut into fine rings. Wash, clean, seed and finely dice the tomatoes. Clean, wash and cut lettuce into strips.
Mix yoghurt and salad cream. Season to taste with salt and pepper. Mix salad cream with prepared ingredients. Heat the tacos one after the other in a preheated pan without fat for about 10 seconds on each side.
Immediately add the vegetable salad cream mixture and roll up. Repeat until tacos and filling are used up. Cut wraps in half at an angle. Place in paper cuffs and serve. Serve with a tomato and yoghurt dip.