01 - Preheat oven to 400°F and line a baking sheet with parchment paper.
02 - Heat 1 tablespoon olive oil in a skillet over medium heat. Add onion and garlic, sauté for 2 minutes until softened. Stir in chopped spinach and cook an additional 2-3 minutes until fully wilted. Allow mixture to cool.
03 - In a large mixing bowl, combine ground chicken, egg, grated Parmesan, almond flour, dried oregano, paprika, salt, and black pepper. Fold in the cooled spinach mixture and mix until thoroughly combined.
04 - With damp hands, shape the prepared mixture into 16 equal meatballs and arrange evenly on the lined baking sheet.
05 - Lightly brush or drizzle the meatballs with the remaining tablespoon of olive oil.
06 - Transfer baking sheet to the preheated oven and bake for 18 to 20 minutes or until meatballs are golden brown and internal temperature reaches 165°F.
07 - Remove from oven and let meatballs rest 3 minutes before serving.