Preheat oven to 350 F.
In a large bowl, thoroughly mix together cream cheese, Alfredo sauce, garlic, red pepper flakes, spinach, and artichoke hearts, then mix in mozzarella and Parmesan cheeses.
Cover with foil and bake 25 to 30 minutes, or until melted and bubbly.
Remove foil and continue baking another 5 to 10 minutes to brown the cheese on top.
Serve warm with tortilla chips, baguette, crackers, or cut-up raw vegetables.
Per serving: 236 calories, 12 grams fat (7.5 grams saturated fat), 34 milligrams cholesterol, 1,779 milligrams sodium, 18.5 grams total carbohydrates, 2 grams fiber, 11 grams protein.