Spinach Balls - cooking recipe

Ingredients

1 (10 oz.) pkg. frozen spinach (chopped)
1 small onion, chopped
1 egg
1/2 c. Parmesan cheese
1/2 c. Italian breadcrumbs
4 Tbsp. soft butter or margarine

Preparation

Blend well.
Roll into walnut-size balls.
Cook at 350\u00b0 for 15 to 20 minutes.