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 and sauté for 2 minutes until softened. Add chopped spinach and cook an additional 2–3 minutes until wilted. Remove from heat and let cool.
03 - In a large mixing bowl, add ground chicken, egg, grated Parmesan, almond flour, dried oregano, paprika, salt, and black pepper. Fold in the cooled spinach mixture, mixing until thoroughly combined.
04 - With dampened hands, shape the mixture into 16 small meatballs and arrange evenly on the prepared baking sheet.
05 - Brush or drizzle the remaining olive oil over the meatballs.
06 - Bake for 18–20 minutes, or until the meatballs are golden and fully cooked through and the internal temperature reaches 165°F.
07 - Allow meatballs to rest for 3 minutes before serving.