Prepare the peppers and onions and set aside.Peel the potatoes and grate the potatoes. Place on a paper towel to adsorb any liquid. In a medium bowl place the potatoes, peppers, onions, Parmesan cheese, and egg. Scoop out about a 1/4 of a cup of the potatoes and form into patties. Continue until all the potatoes have been made into patties.

Add olive oil to a skillet until the bottom is covered. Heat over medium heat, once the oil is heated place the potato fritters into the skillet. Fry for about 5 minutes or until the fritters are golden brown, flip and continue to fry the other side until golden brown for about another 5 minutes. Flip again and continue to fry for about another 5 minutes, in all about 15 minutes or until potatoes are tender in the inside. Season with salt, to taste. Watch fritters as they fry so they do not burn. Serve immediately.