Step 1

Preheat the oven to 375°F.

Step 2

Season chicken breasts with salt and pepper on both sides. Arrange in a 9x13-inch baking dish.

Step 3

Combine spinach, artichokes, parmesan cheese, mayonnaise, sour cream, and garlic. Spread on top of chicken breasts. Top with grated mozzarella cheese.

Step 4

Bake for 30-35 minutes in the preheated oven until a digital meat thermometer inserted into the thickest part of the chicken breast registers the internal temperature at 165°F.