Baked Spinach-Artichoke Dip without Mayo

Preheat the oven to 350 degrees F (175 degrees C). Spray a baking dish with cooking spray.

Place thawed spinach in a kitchen towel; wrap tightly to squeeze out excess water until spinach is just damp. Set aside.

Mix cream cheese, sour cream, onion powder, salt, and pepper together in a large bowl until smooth and creamy. Add artichoke hearts, drained spinach, hot sauce, and garlic; mix well. Add in 1 cup mozzarella cheese and 1/4 cup Parmesan cheese; mix well. Pour into the prepared baking dish and sprinkle with extra cheese if you like a crispy, bubbly cheese layer on top.

Bake in the preheated oven until bubbly and slightly browned on top, about 30 minutes.