1 lb. feta cheese
2 lbs. ricotta cheese
8 oz. cottage cheese
6 eggs
1 onion, finely chopped
1 lb. phyllo pastry sheets
2 tsp. salt
2 tsp. pepper
1/2 lb. butter
3 pkgs. frozen chopped spinach, thawed
1 tbsp. oil

Saute onion in oil. Mix together onions, spinach, cheeses, eggs, salt and pepper; set aside. Spread melted butter on 10 x 15 inch pan bottom. Line pan bottom with 6 phyllo sheets, spreading each sheet with melted butter. Add spinach mixture, spreading evenly over phyllo. Cover mixture with 6 more phyllo sheets, spreading each sheet with butter. Bake at 350 degrees for 3 minutes. Remove cut into squares and continue baking until golden (approx. 30 minutes).