Low-Carb Chicken Pesto Meatballs

ground chicken, ideally thighs (1 lb)

large egg

almond flour (50 g/ 1.8 oz) or 3 tbsp coconut flour for nut-free (24 g/ 0.9 oz)

pesto, divided into 2 parts (125 g/ 4.5 oz)

small red onion, chopped (60 g/ 2.1 oz)

sea salt