01 - Preheat the oven to 375°F.
02 - In a large skillet, heat olive oil over medium-high heat. Add chicken pieces, season with salt, pepper, thyme, and smoked paprika. Sauté for 4–5 minutes until lightly browned.
03 - Add chopped onion and garlic, cook for 2–3 minutes until softened.
04 - Add spinach and sauté until wilted, about 2 minutes.
05 - Lower heat to medium. Stir in cream cheese and heavy cream until the mixture is smooth and creamy.
06 - Remove from heat. Fold in half of the mozzarella and all the Parmesan cheese.
07 - Transfer the mixture to a greased baking dish. Sprinkle remaining mozzarella on top.
08 - Bake for 20–25 minutes, until golden and bubbling.
09 - Let rest for 5 minutes before serving.