Buy the meat according to the number of persons. This is for 4 persons, so increase if necessary. The neck part is ideal.
Use a pressure cooker to speed up the cooking. If you rather not use it, check once in a while and add water if necessary.
Place the meat in your cooker. Add water to cover the bottom. And boil until meat is completely cooked. Check by eating a little piece or poking a thin knife. Some prefer to seal the meat first to keep the meat juice in it but for this dish the juice is important too, so sealing the meat is not a must.
While the meat is cooking peel the carrots, cut to dices. With some olive oil sauté in a separate pan.
On top of the carrots add zest of a lemon. Close the heat.
Peel the potatoes. Cut to large pieces.
Peel the onions. Cut to half or quarters.
Peel the garlic, do not crush.
When the meat is done and there are too many ugly looking bubbles drain everything to another pot. The bubbles will remain on the drainer for you to discard. Pour everything back to the original pot.
When the meat is ready add the potatoes, onions, garlic, peas, carrots. Add additional water if the stock is not covering the bottom. Cook again until potatoes are ready this time.
Add black pepper and salt to taste. Remove from the heat.