Creating this delicious Slow Cooker Spinach Artichoke Dip is simple if you follow these straightforward steps:

1. Prepare Slow Cooker: Spray the inside of your slow cooker with non-stick cooking spray for easier cleaning.

2. Combine Ingredients: In a large mixing bowl, combine the spinach, artichoke hearts, cream cheese, sour cream, mayonnaise, mozzarella cheese, Parmesan cheese, garlic, onion powder, salt, black pepper, and red pepper flakes (if using).

3. Mix Thoroughly: Stir the mixture until all the ingredients are well combined and everything is coated evenly.

4. Transfer to Slow Cooker: Spoon the mixture into the prepared slow cooker, spreading it evenly.

5. Set Cooking Time: Cover and cook on low for 2 to 2.5 hours, stirring occasionally to ensure even heating and to prevent the dip from sticking to the sides.

6. Check for Doneness: The dip should be hot, bubbly, and creamy when done. If necessary, let it cook for an additional 30 minutes, checking frequently.

7. Serve Hot: Once ready, take off the lid and serve immediately. The dip will be deliciously warm and gooey.

With these steps, you’re just a little while away from enjoying this fantastic dip!