Cook in the oven starting at about twenty minutes. Watch carefully as it needs to be at a perfect cooking time. It needs to be firm enough to hold up but not cooked enough that it starts to brown and get crunchy. It should be firm enough to hold together and be rolled when it is done.
Tomato sauce:
9 Heat tomato paste and broth in a saucepan on the stove. Stir in lemon juice cottage cheese and seasonings and cook over low heat for a few minutes.
10 Add meatballs to the sauce and stir until the meatballs are all covered in the sauce.
11 Cut cottage cheese in half and place meatballs on them. Top cheese or onion or whatever you desire fold up and enjoy.