Finely crush coriander in a mortar. Mix in pimentón and 1 teaspoon salt. Wash the meat, dab dry, cut in three and spice vigorously with the prepared spice mixture.
Peel, wash and chop the potatoes and cook in boiling salted water for about 15 minutes. Halve the peppers, clean, wash and cut into pieces. Peel onion and garlic and chop coarsely.
Heat 2 tablespoons of oil. Fry the onion and garlic for about 5 minutes. After about 3 minutes add paprika and tomato paste. Season with salt and pepper. Pour beans and corn into a sieve and rinse. Add vegetable stock, corn and beans to the onions, bring to the boil and simmer for about 3 minutes. Season with sugar, salt and pepper.
In the meantime heat 2 tablespoons of oil in a large frying pan. Fry the meat in portions for about 4 minutes, turning the meat over. Bring butter and milk to the boil in a small pot. Drain potatoes, add milk and butter and mash potatoes coarsely. Season to taste with salt and nutmeg. Heat 1 tablespoon of oil in a small pan and roast the seeds briefly while turning. Arrange schnitzel, vegetables and mashed potatoes, sprinkle seeds on top.