Spinach Calzones with Bleu Cheese

Description
This recipe came from an estate sale. I obtained it when I purchased the family collection from the Stewart Estate in Quinlan, Texas in 1994.
 * Contributed by Catsrecipes Y-Group

Ingredients

 * 10 ounce can refrigerated pizza crust
 * cooking spray
 * 4 garlic cloves minced
 * 4 cups spinach leaves
 * 8 thick slices sweet onion
 * 1⅓ cups sliced cremini or button mushrooms
 * ¾ cup crumbled blue cheese

Directions

 * 1) Preheat oven to 425°F.
 * 2) Unroll dough onto a baking sheet coated with cooking spray then cut into 4 quarters.
 * 3) Pat each quarter into a rectangle and top with 1 cup spinach, 2 onion slices, ⅓ cup mushrooms and 3 tablespoons cheese.
 * 4) Bring 2 opposite corners to center pinching points to seal.
 * 5) Bring remaining 2 corners to center pinching all pints together to seal well.
 * 6) Bake at 425 for 12 minutes.