Cook the cauliflower rice as per instructions on the packet.
Meanwhile, heat a good glug of sesame oil in a frying pan over a medium heat then add in your garlic and ginger. Cook for 1 minute until aromatic.
Add in the coconut aminos, pak choi and carrot ribbons and toss together until they begin to wilt and the carrots become slightly softer. Set aside
Return the pan to the heat with another glug over a medium high heat, then add in your mackerel fillets skin side down. Fry for 2-3 minutes without moving the fillets so the skin is crispy and golden. Flip over and cook for another 1-2 minutes.
Serve the mackerel with the rice and veg. Top with fresh coriander, fresh chilli and cucumber ribbons.