01 - Preheat the oven to 400°F and line a baking sheet with parchment paper.
02 - Heat 1 tablespoon of olive oil in a skillet over medium heat. Add diced onion and minced garlic; sauté for 2 minutes until softened. Incorporate chopped spinach and cook for an additional 2 to 3 minutes until 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, mixing until fully combined.
04 - With damp hands, shape the mixture into 16 small meatballs. Arrange meatballs evenly on the prepared baking sheet.
05 - Brush or drizzle the remaining 1 tablespoon of olive oil over the tops of the meatballs.
06 - Transfer to the oven and bake for 18 to 20 minutes or until golden brown and an internal temperature of 165°F is reached.
07 - Remove from oven and allow meatballs to rest for 3 minutes before serving.