Halve the pepper lengthways and remove the white seeds. Finely grate the potatoes. Coarsely grate the cheese. Finely dice the onion. Finely dice the ham. Mash the garlic. Preheat the oven to 200 degrees. Mix the potatoes with cheese, onions and ham well. Season the mixture with salt and Tabasco.
Work in the beaten egg. Finally, mix in the garlic, peas and flour and season to taste. Pour the mixture into the prepared peppers and place them in an ovenproof dish. Pour the vegetable stock and cook at 200 degrees for 40 minutes.