Creating Creamy Spinach and Artichoke Dip is a breeze. Here is a clear, step-by-step process to guide you through:

1. Preheat the Oven: Preheat your oven to 375°F (190°C) to prepare for baking.
2. Combine Ingredients: In a large mixing bowl, add the softened cream cheese, sour cream, and mayonnaise. Mix until smooth.
3. Add Spinach and Artichokes: Stir in the chopped artichoke hearts and drained spinach until well combined.
4. Incorporate Cheeses: Add the shredded mozzarella and grated Parmesan cheese, mixing until evenly distributed.
5. Season the Dip: Add minced garlic, onion powder, salt, black pepper, and red pepper flakes. Stir until all ingredients are well combined.
6. Transfer to Baking Dish: Pour the mixture into a greased baking dish, smoothing the top with a spatula.
7. Bake: Place the dish in the preheated oven and bake for 20-25 minutes or until the dip is hot and bubbly.
8. Garnish: Remove from the oven and let it cool slightly. If desired, sprinkle with fresh parsley or basil for a pop of color.
9. Serve: Serve warm with your choice of dippers such as tortilla chips, pita bread, or vegetables.

Following these easy steps will result in a creamy and delicious dip that your guests will absolutely love.