Ingredients:
1 finely chopped onion
1 pound crumbled feta cheese
2 tablespoons chopped fresh dill
2 tablespoons fresh breadcrumbs
1 large egg yolk
3 tablespoons olive oil
2 10-ounce packages ready to use, fresh spinach, chopped
1 pound filo pastry sheets

Directions:
Preheat oven to 325″ F. Lightly butter 11x7x2-inch baking dish.
Mix first 6 ingredients above in large bowl.
Heat oil in large pot over medium high heat. 
Add spinach; saute until wilted andjuices evaporate (about 3 minutes.) 
Transfer spinach to strainer over bottom of prepared dish.

Unroll the filo dough on a flat surface and cut the filo into 3x11 inch strips. Place a small spoonful of spinach filling 1 inch from the end of the pastry. 
Fold the end over the filling to form a triangle.

Bake until heated through, about 20 minutes.