Heat the coconut oil in a large frying pan over a high heat. When hot, add the chicken and brown on both sides, 1-2 minutes. Add the onion and garlic and cook, stirring, for another 3-4 minutes until the onion softens.
Reduce the heat to a medium. Add the spices, stir briefly, then add the peanut butter, broccoli, green beans and mushrooms and continue to cook, stirring, for 2-3 minutes.
Add the coconut cream, bring up to a light boil and cook for 4-5 minutes until the sauce begins to thicken slightly. Add the silverbeet and allow to cook for 30 seconds to wilt.
Season well with salt and freshly ground black pepper, then serve straight away, topped with a sprinkle of sliced chilli.