My vegetarian German friends gave me this recipe. I cooked this today and really loved it, though I didn't have any feta on hand so I used a little mozzarella. Still, I love feta and I'm positive the feta can only make the recipe taste even better! The vegetarian sausages, hot dogs, or vegetarian bacon are optional, but it really make the potatoes taste more authentic and gives it great flavor. You can also add Baco bits which are vegetarian. Serve with a fresh green side salad.