01 - Preheat 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. Stir in finely chopped spinach and cook for 2-3 minutes until wilted. Remove from heat and allow to cool.
03 - In a large mixing bowl, combine ground chicken, egg, grated Parmesan, almond flour, dried oregano, paprika, salt, and black pepper. Add the cooled spinach mixture and mix until evenly incorporated.
04 - With damp hands, shape the mixture into 16 small meatballs and arrange them evenly on the prepared baking sheet.
05 - Brush or drizzle the remaining tablespoon of olive oil over the meatballs.
06 - Transfer baking sheet to oven and bake for 18-20 minutes, or until meatballs are golden and reach an internal temperature of 165°F.
07 - Allow meatballs to rest for 3 minutes before serving.