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 an additional 2 to 3 minutes until wilted. Remove from heat and let cool.
03 - In a large mixing bowl, combine ground chicken, egg, grated Parmesan, almond flour, oregano, paprika, salt, and black pepper. Add the cooled spinach mixture and blend until evenly incorporated.
04 - With damp hands, form the mixture into 16 small meatballs. Arrange evenly on the prepared baking sheet.
05 - Lightly brush or drizzle the remaining olive oil over the meatballs.
06 - Bake for 18 to 20 minutes, until meatballs are golden brown and the internal temperature reaches 165°F.
07 - Let meatballs rest for 3 minutes before serving.