Spinach Cheese Balls

I made these gluten-free for a 4th of July party this year and they were good - even though I overbaked them slightly.  I did mix them up a couple of days ahead and froze until the day of the party.  I served these with pizza sauce.  As always, if you are making my recipes gluten-free, make sure you purchase the appropriate ingredients! 

Spinach Cheese Balls1 box (9 oz) frozen spinach, thawed, squeezed to drain

1 cup Bisquick® mix (gluten free, if desired)
2 cups shredded mozzarella cheese (8 oz)
1 egg
2 teaspoons Italian seasoning
1 teaspoon garlic salt
1 cup GF pizza or pasta sauce for dipping, if desired

Heat oven to 400°F. Spray cookie sheet with cooking spray. In large bowl, mix all ingredients, except pasta sauce. Shape mixture into 1-inch balls; place on cookie sheet.2 Bake 10 to 15 minutes or until golden brown. Immediately remove from pan. Serve with pasta sauce.
Do-Ahead:
Cover and freeze unbaked balls up to 1 month. Heat oven to 350ºF. Place frozen balls on ungreased cookie sheet. Bake 25 to 30 minutes or until brown.