Bilad al-Sham Kitchen - Roasted Potatoes Stuffed with Parmesan

Roasted Potatoes Stuffed with Parmesan

6 medium potatoes

3 tablespoons olive oil

1 teaspoon salt

For the filling

2 tablespoons butter

3 tablespoons yogurt

1 teaspoon mustard

1 teaspoon lemon juice

Black pepper to taste

1/2 cup finely grated Parmesan cheese