Oh my, I brought this dip to a gathering, and it disappeared so fast!

Preheat your oven to 350°F (175°C).
In a large mixing bowl, combine the mayonnaise, sour cream, Parmesan cheese, mozzarella cheese, and minced garlic.
Add the thawed and drained spinach and chopped artichoke hearts to the mixture, stirring until well combined.
Season with salt and black pepper, adjusting to taste.
Transfer the mixture to a baking dish, spreading it evenly.
Bake in the preheated oven for 25-30 minutes, or until the top is golden and bubbly.
Remove from the oven and let it cool slightly before serving.
Variations & Tips
For a bit of a kick, consider adding a pinch of red pepper flakes or a dash of hot sauce to the mixture. If you prefer a tangier flavor, substitute half of the mayonnaise with cream cheese. For a lighter version, use Greek yogurt in place of sour cream. You can also add a handful of chopped fresh herbs like parsley or dill for a burst of freshness. If you're feeling adventurous, try mixing in some cooked, crumbled bacon for an extra layer of flavor.