Preheat oven to 350°F (180°C)
Place chicken breasts on a baking sheet lined with parchment paper
Season with salt and pepper
Bake for 20-22 minutes until fully cooked
Meanwhile, heat olive oil in a skillet over medium heat
Sauté garlic for 1 minute
Add spinach and cook until wilted (2-3 minutes)
Stir in chopped artichoke hearts and cooked spinach
Microwave cream cheese in microwave-safe bowl until softened (2 minutes on high)
Mix in Parmesan cheese and garlic-spinach mixture until fully combined
Spoon sauce over baked chicken breasts
Optional: broil for 2 minutes for golden crust