Spinach Balls

1 package frozen spinach, cooked and drained
1 cup prepared stuffing mix
1 medium onion, chopped
2 eggs, beaten
1/4 cup parmesan cheese, shredded
1/4 cup melted butter
1 teaspoon garlic salt
1/8 teaspoon pepper
1/8 teaspoon thyme

Melt the butter in a frying pan. Add onions and heat until softened. Allow to cool. Mix all ingredients in a bowl. Chill until the mixture is stiff. Shape into small balls and place on cookie sheet. Bake at 350 degrees for 15 minutes. Serve hot.