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. Sauté onion and garlic for 2 minutes until softened. Add chopped spinach and cook until wilted, about 2–3 minutes. Let the mixture cool.
03 - In a large bowl, combine ground chicken, egg, Parmesan cheese, almond flour, oregano, paprika, salt, and black pepper. Add the cooled spinach mixture and mix thoroughly until evenly incorporated.
04 - With damp hands, shape the mixture into 16 small meatballs and arrange evenly spaced on the prepared baking sheet.
05 - Brush or drizzle the meatballs with the remaining olive oil.
06 - Bake for 18–20 minutes, or until golden and cooked through. Ensure internal temperature reaches 165°F.
07 - Allow meatballs to rest for 3 minutes before serving.