In a mixing bowl, combine ground chicken, ricotta, breadcrumbs, milk, Parmesan, egg, parsley, garlic, Italian seasoning, salt, and pepper. Mix until well combined.
Form the mixture into meatballs and set aside.
In a skillet, melt butter over medium heat. Add minced garlic and sauté until fragrant.
Stir in heavy cream and bring to a simmer. Add spinach and cook until wilted.
Gently add meatballs to the skillet, cover, and cook until meatballs are cooked through.
Stir in Parmesan cheese until melted and combined. Season with salt and pepper to taste.
Notes
You can substitute ground turkey for chicken if preferred.