Place the thawed spinach and chopped artichoke hearts in a blender or food processor. Blend until well combined.
Transfer the blended mixture to a mixing bowl and incorporate it thoroughly with Alfredo sauce, shredded mozzarella cheese, grated Parmesan cheese, and softened cream cheese.
Preheat your oven to 350°F (175°C).
Evenly spread the mixture into an 8x8 inch baking dish.
Cover the dish and bake in the preheated oven for about 30 minutes, or until the cheese is melted and the dip is delightfully bubbly.
Serve the dip warm, accompanied by your favorite dippables, and relish the symphony of flavors.