Grate the oranges on a fine setting on your grater - set aside half for another recipe (you can freeze it). Juice the oranges, mix up the sauce ingredients and set aside - this can be done in advance.
If using the thickener, mix in a small dish and set aside.
Prepare your rice
Prepare your rice, depending on your preferred type and cooking method.
Cook your veggies
Prepare the vegetables as described in the ingredients list, and heat up a large frypan or wok on medium-hot.
Start cooking the vegetables individually in small amounts of oil, starting with the onion. Cook for 1-2 minutes until soft, lightly browned and then set aside.
Next, cook the sliced shiitake in a little oil. The mushrooms should be nice and browned before removing to a plate - a few minutes.
Start cooking the next veggies in some oil - these should be cooked only about a minute to maintain crispiness. Set aside once done.
Cook the meat or tofu
Finally, add oil to the pan and add the ground pork/chicken (mince) or cubed tofu. Cook for a few minutes until almost done (no pink spots in the meat) or tofu is browned.
Finish the recipe
Add the garlic, salt and pepper and mix with the meat for a minute and then add all reserved ingredients back to the pan. Turn up the heat and add in the sauce.
If using the thickener, stir it up again in the small dish and add to the pan. Cook for another minute until the sauce thickens. Turn off the heat and serve immediately with rice.
Notes
*to substitute tamari for the coconut aminos, use 2 tablespoons tamari (1 ½ AUS tablespoons) and 2 tablespoons water (1 ½ AUS tablespoons)