Making Spinach-Artichoke Dip Wonton Cups is a straightforward process if you follow these simple steps:

1. Preheat the Oven: Preheat your oven to 375°F (190°C).
2. Prepare the Wonton Wrappers: Lightly grease a muffin tin. Press each wonton wrapper into the cups of the muffin tin to form a shell.
3. Bake the Shells: Bake the wonton wrappers for about 5-7 minutes, or until they are golden brown. Remove from the oven and set aside.
4. Mix the Filling: In a large bowl, combine the thawed spinach, chopped artichoke hearts, cream cheese, sour cream, Parmesan cheese, mozzarella cheese, minced garlic, onion powder, salt, and pepper. Mix until well combined.
5. Fill the Wonton Cups: Spoon the spinach-artichoke mixture into each baked wonton shell, filling them generously.
6. Bake Again: Return the filled wonton cups to the oven and bake for an additional 10-15 minutes, or until the tops are golden and bubbly.
7. Garnish: Remove from the oven and let cool for a few minutes. Optionally, sprinkle with chopped green onions for a fresh touch.
8. Serve Warm: Enjoy the Spinach-Artichoke Dip Wonton Cups while they are warm and gooey for the best flavor experience.

These simple steps will guide you in creating these delicious appetizers effortlessly.