Lightly coat one side of each slice of bread with olive oil; lay out the slices oiled side down on a plate. Spread 1 teaspoon mayonnaise and 1 teaspoon of hot sauce on each slice. Top two of the slices of bread with a slice of Swiss cheese and 1/4 cup of sauerkraut. Arrange the turkey on the other two slices of bread. Bring the two halves together.
Fry the sandwiches in the preheated frypan until the bread is golden brown on both sides and the cheese has melted.