How to make Stuffed Eggplant Rolls With Feta

Ingredients
For 5 servings:

100ml olive oil
1 large onion
250g canned chopped tomatoes
2 bay leaves
2 tsp salt
1/2 tsp pepper
30g parsley
150g feta cheese
1 large eggplant
1L water
150ml tomato juice
150g Regato cheese