Preheat the oven to 350°F. Lightly spritz a 2 quart baking dish with cooking spray. Set aside.
In a medium-size mixing bowl using an electric mixer, whip together mascarpone or cream cheese, mayonnaise, sour cream, heavy cream, lemon juice, dry Italian dressing mix and red pepper flakes. Season with salt and black pepper to your taste.
Fold in artichokes, green onion, Parmesan and 1 cup shredded cheese by hand. Mix well.
Pour evenly into baking dish and sprinkle the remaining 1 cup shredded cheese on top.
Bake for 35-40 minutes or until bubbly and golden.
Serve warm with pita chips, crackers or cubed bread for dipping.