combine ground beef in skillet with oil,onion celery,green peppers,salt,tomato paste,sugar,basil leaves,oregano and garlic.
stir in sour cream to form sauce
simmer sauce on top of stove for 1/2 hour.
pour part of sauce in the bottom of pan,
cover with layer of potatoes.
repeat until ingrediants are all used
Bake at 400º for 1 hour in covered pan
top with parmesan cheese if disired.