Spinach and Feta Swirls

This appetizer or side dish is yummy and pretty.  I combined two different recipes in order to come up with this one.  Made this two times now and always very satisfied with the result.

Ingredients:
1 lb fresh baby spinach, chopped or 1 10 oz package frozen spinach
1 small onion, chopped finely
4 oz feta
1 egg, beaten
1 tbs. fresh dill, chopped
2 tbs. fresh flat leaf parsley, chopped
salt and pepper
1 sheet frozen puff pastry, defrosted

Directions:
1) Preheat oven to 400F and lightly grease one baking pan.
2) Sautee onion in about 1 tbs olive oil in a large skillet.  Add fresh spinach with just water from leaves and cook for about 2-3 minutes or until wilted.  If using frozen spinach, cook until no longer in chunks.  I've done it with fresh spinach or frozen spinach and I personally think the fresh spinach is easier.
3)Allow to cool.  Drain spinach and onion mixture in a kitchen towel.  Combine spinach, onion, dill, parsley, egg, feta, and salt and pepper.
4)Unfold puff pastry and top with spinach mixture

5)Roll up on short side like a jelly roll.  Slice into 1/2 inch pieces.
6)Place sliced pieces cut side down on greased pan and bake for 15 minutes or until golden brown.