Set the Instant Pot to 'saute' and add the avocado oil to the pot. Once hot, add the diced onion and cook for 3-4 minutes, until translucent.
Add the beef stew meat to the pot and cook for 2-3 minutes, until browned, then flip and cook an additional 2-3 minutes.
Add the garlic and ginger and saute until fragrant, about 30 seconds.
Pour the coconut aminos, chicken broth, sesame oil, rice wine vinegar, coconut sugar, and salt into the pot.
Seal the pot and set to cook on high pressure for 15 minutes. Once the timer goes off, immediately release the pressure from the pot, then remove the lid and set it back to 'saute' mode.
Steam the broccoli using your preferred method.
Microwave Method: Place the broccoli florets into a large glass bowl with about ¼ cup water. Affix with either a microwave-safe lid or seal with plastic wrap. Microwave on high for 5 minutes, until the florets are bright green and easily pierced with a fork. Drain the water from the broccoli and set aside.
Stovetop Method: Place the broccoli florets into a medium sized pot with ¼ cup water. Place the lid on and let simmer for 10 minutes, until the florets are bright green and easily pierced with a fork. Drain the water from the broccoli and set aside.
Whisk together the cornstarch and water and stir it into the pot. Let the mixture come to a low boil. Once the sauce is thickened, turn the Instant Pot off and serve!