Eat these meatballs right out of the air fryer, tossed in some warmed no-sugar-added napolitana sauce or over a bed of steamed greens. The onion, yoghurt and cheese add a moistness that plays so nicely with the natural, juicy fattiness of ground pork. The almond flour and egg also help bind these meatballs together — you’ll never miss the carb-filled bread crumbs!