Heat the oil in a coated pan and fry the minced meat until crumbly. Season with salt, pepper and chilli. Cut wheat tortilla into strips and place on a baking tray lined with baking paper. Roast in a preheated oven (electric cooker: 200 °C/ circulating air: 175 °C/ gas: level 3) for about 5 minutes
Put the corn and bean mix on a sieve, rinse briefly under cold water and drain. Peel onions and cut them into slices. Clean and wash the peppers and cut them into fine rings. Clean and wash the salad and let it drain well. Cut lettuce into strips, except for 2 leaves
Wash the chilli, cut lengthwise, remove the seeds and finely chop the pod. Mix yoghurt, chilli and lemon juice. Season to taste with salt and sugar
Mix the corn and beans, peppers, salad strips and 2/3 of the minced meat with the yoghurt sauce. Put 2 lettuce leaves in a bowl. Put the lettuce in the bowl and sprinkle with the remaining minced meat. Serve with roasted tortilla strips