Making Spinach Artichoke Dip is straightforward if you follow these easy steps:

1. Preheat the Oven: Set your oven to 350°F (175°C).
2. Prepare Spinach: Squeeze excess moisture from the thawed spinach to prevent a watery dip.
3. Mix Ingredients: In a large bowl, combine the cream cheese, sour cream, and mayonnaise. Mix until smooth.
4. Add Veggies: Fold in the chopped spinach and artichoke hearts until evenly distributed.
5. Incorporate Cheese: Stir in the mozzarella and Parmesan cheeses, followed by minced garlic, onion powder, salt, black pepper, and red pepper flakes if desired.
6. Transfer to Baking Dish: Spread the mixture evenly in a baking dish or oven-safe skillet.
7. Bake: Place the dish in the preheated oven and bake for 15-20 minutes, or until the dip is bubbly and golden on top.
8. Cool Slightly: Remove from the oven and let it cool for a few minutes before serving.

These steps will guide you in creating this incredible dip effortlessly.