Peel, wash and halve the potatoes and cook in boiling salted water for about 15 minutes. Peel onion and cut into fine cubes. Clean, wash and cut the zucchini into small pieces. Drain the potatoes and let them drain.
Heat 1 tablespoon of oil in a large pan with a high rim. Fry the potatoes for 5-7 minutes, turning them over. Season with salt and pepper and remove. Add 1 tablespoon of oil to the pan. Sauté the onion for 1-2 minutes, turning it over.
Add the zucchini and fry for about 3 minutes. Add minced meat and fry until crumbly. Add tomato paste and sweat briefly. Deglaze with tomatoes and 3 tbsp. water, bring to the boil and simmer for about 15 minutes.
In the meantime heat 1 tablespoon of oil in a second pan. Fry the bacon for 2-3 minutes on each side, remove and drain on kitchen paper. Add the potatoes to the bolognese and heat them up.
Season to taste with salt, pepper and sugar. Clean and wash spring onions and cut them into small rolls. Wash parsley, shake dry, remove leaves and cut into fine strips. Arrange potato pan on plates.
Halve the bacon slices and place 2 halves on each. Sprinkle with spring onions and parsley.