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 diced onion and minced garlic, sauté for 2 minutes until soft. Add chopped spinach and cook 2-3 minutes until wilted. Transfer to a plate to cool.
03 - In a large mixing bowl, blend ground chicken, egg, grated Parmesan, almond flour, dried oregano, paprika, salt, and black pepper. Incorporate cooled spinach mixture and mix thoroughly.
04 - With damp hands, form the mixture into 16 evenly sized meatballs and arrange them on the prepared baking sheet.
05 - Brush or drizzle the remaining tablespoon of olive oil over the meatballs.
06 - Bake in the oven 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.