Peel the potatoes and slice them thinly into strips. Rinse them several times in cold water to remove the starch.

Add 1-2 tbsp of tempura flour to the potato strips and mix well.

Heat a generous amount of cooking oil in a pan and fry the potato mixture until golden brown.

Flip the potato mixture and fry the other side until golden brown.

Spread 2 tbsp of spaghetti sauce on the fried potato base and add ketchup to taste.

Generously top the base with mozzarella cheese.

Bake in the oven until the cheese turns golden brown. If you don't have an oven, cover the pan with a lid and cook on low heat until the cheese melts.