Preheat a pan over medium high heat. Add the avocado oil. Once the oil has warmed add the garlic and onion. Stir for a minute or two until fragrant.
Add the bok choy and drizzle with tamari and sesame oil. Turn it around a couple times to coat, then place cut side down. Place a lid over the top of you pan and let steam cook for 2 minutes. Remove the lid, turn the bok choy back over, and remove from the pan with the garlic and onions, and place on a plate. Sprinkle with red pepper flakes, if desired, and set aside.
In the same pan, add the avocado oil for the tofu, coconut aminos, honey, sriracha, and tofu. Toss the tofu to coat and cook for 5 minutes, stirring often.
Add the tofu to the plate with the bok choy. Sprinkle with sesame seeds, if desired. and serve warm.