Wash the potatoes and cook in boiling water for 20-30 minutes, then drain and chill. In the meantime peel and dice the onion. Peel and slice the potatoes. Wash and clean the zucchini and cut into thin slices. Pour corn into a sieve and drain. Peel and slice the peppers.
Heat 1 tablespoon of lard in 2 pans. Fry approx. 1/4 of the potato slices in each pan for approx. 7 minutes while turning. Season with salt and pepper. After about 4 minutes add about 1/4 onions and zucchini.
Add about 1/4 paprika and 1/4 corn about 1 minute before the end of the frying time. Whisk 3 eggs in portions and season with salt and pepper. Pour the eggs over the potatoes. Shortly before the mixture begins to set, fold over the middle of each egg with a spatula.