In a small mixing bowl, add all the ingredients for the sauce and whisk until well incorporated.
Sprinkle the magic mushroom powder over the pieces meat and toss to coat meat as evenly as possible. (alternatively, you could sprinkle generously with salt and pepper)
Heat a generous amount of coconut oil in a wok set over very high heat. When your wok is scorching hot, add beef strips in 2 or 3 batches and saute very quickly, about 45 seconds to one minute total, until just browned but still slightly under-cooked.
Transfer the cooked meat to a bowl to collect the juices.
Once all the meat is cooked, add zucchini, carrots, mushrooms, bell peppers, ginger and garlic to the wok. Again, sauté until just tender, about 2-3 minutes total.
Add cilantro, green onions and sauce. Stir well and continue cooking for about 1 minute, until the sauce thickens.
Throw meat back in, add cashews, give one final stir and serve.