Mix Spinach Filling: In a medium-sized bowl mix together cream cheese, mayonnaise, Mozzarella cheese, garlic, salt, and pepper. Add artichoke hearts, spinach, and green onions. Mix until just combined.
4 oz. cream cheese, ¼ cup mayonnaise, ¼ cup Mozzarella cheese, 2 cloves garlic, ½ tsp. salt, ¼ tsp. black pepper, ¼ cup artichoke hearts, ¼ cup chopped frozen spinach, ¼ cup green onions