Wash potatoes thoroughly and cook in boiling water for about 20 minutes until firm to the bite. In the meantime peel onion and cut into fine strips. Peel garlic and chop finely. Clean the chillies, cut lengthwise, wash and remove the seeds. Chop the pod finely. Heat 2 tablespoons of oil in a large frying pan and fry the minced meat for about 4 minutes, turning it over until crumbly. After about 2 minutes add onion, garlic and chili and fry. Stir in tomato paste and season to taste with salt, pepper, paprika and cumin. Take the minced meat out of the pan and let it cool down. Drain potatoes, rinse with cold water, peel and let cool off.
In the meantime, clean the salad, spin dry and cut into fine strips. Wash tomatoes, remove stalk attachments and dice tomatoes coarsely. Pour kidney beans and corn into a sieve, rinse cold and drain well. For the dressing, wash lemon hot, grate dry and finely grate the peel of one half. Mix vinegar with sauce, 2 tbsp. oil and lemon peel, season with salt and pepper.
Quarter the potatoes, mix with the minced meat, lettuce, tomatoes, dressing, corn and beans and arrange in a large bowl. Wash the basil, shake dry, remove leaves from the stems and spread on the salad.