01 -
Preheat oven to 375°F (190°C). Lightly grease a 9-by-13-inch baking dish. Pat the chicken breasts dry and arrange in a single layer. Season with garlic powder, salt, and pepper.
02 -
Place the thawed spinach in a clean kitchen towel and squeeze firmly until very little liquid remains. This step keeps the sauce thick and creamy.
03 -
In a mixing bowl, stir the softened cream cheese, mayonnaise, minced garlic, lemon juice, salt, and pepper until smooth. Fold in the squeezed spinach, drained artichoke hearts, mozzarella, and parmesan.
04 -
Spread the creamy spinach artichoke mixture evenly over the chicken breasts, covering each piece completely.
05 -
Bake uncovered for 25 to 30 minutes, until the chicken reaches 165°F (74°C) internally and the topping is golden and bubbling.
06 -
Let the dish rest for 5 minutes so the sauce sets slightly. Serve warm.