Preheat the Oven: Set your oven to 400°F (200°C).
Make the Meatball Mixture: In a large bowl, combine ground chicken, ricotta cheese, 1/4 cup Parmesan cheese, breadcrumbs, egg, and minced garlic. Mix until well combined.
Shape Meatballs: Use your hands to shape the mixture into evenly sized meatballs. Place them on a lined baking sheet.
Bake the Meatballs: Cook the meatballs in the oven for 25-30 minutes, or until golden brown and fully cooked through.
Prepare the Spinach Alfredo Sauce: In a saucepan over medium heat, add heavy cream, 1/2 cup Parmesan cheese, and chopped spinach. Stir until smooth and creamy, seasoning with salt and pepper to taste.
Serve and Enjoy: Plate your meatballs with the Spinach Alfredo Sauce drizzled on top. You can serve them over pasta, zoodles, or enjoy them right on their own!