Dice the potatoes and put them in a pot with boiling slightly salted water and cook until tender. Drain them and place them in a bowl. Add the finely chopped garlic, the lemon zest and juice, the cream, diced cheese and artichokes cut into small pieces.
Mix all the ingredients well and add salt and pepper to taste. Spread on the slices of bread and bake at 180°C for about 20 minutes. Sprinkle with parsley.