Peel onion and garlic. Chop the onion finely, chop the garlic. Peel, wash and finely dice the carrot. Heat the oil in a deep frying pan. Fry the minced meat in it until crumbly. Finally add onion, garlic, carrot and tomato paste and fry briefly.
Season with salt, pepper and Worcestershire sauce. Dust with flour and stir in. Add stock and chunky tomatoes. Bring to the boil and braise for approx. 25 minutes until the minced meat is thickly braised.
Stir from time to time.
Peel and wash the potatoes and cut them into slices of about 3 mm. Put potatoes in boiling salted water and boil them for about 5 minutes (potatoes should only soften straight). Pour potatoes onto a sieve, rinse under cold water, drain well and allow to cool (possibly on a clean tea towel).
Wash parsley, shake dry and chop. Stir peas and corn into the minced meat mixture and continue to braise for about 5 minutes. Add parsley, place in an ovenproof dish and let cool for about 15 minutes.
Layer half of the potato slices in flakes on the mince and spread a thin layer of half of the double cream. Season with pepper and cover with the remaining potatoes. Spread with the remaining double cream and sprinkle with cheese.
Bake in the preheated oven (electric cooker: 225 °C/ convection oven: 200 °C/ gas: see manufacturer) for approx. 30 minutes until golden brown.