Combine the ingredients for the sauce in a bowl and whisk well. Set aside.
Add the ramen bricks to a bowl and cover with hot water. Cover the bowl with a plate and allow to sit for about 15 minutes, separating halfway through and replacing the water if needed. Allow to sit until softened for about 10 minutes—strain and lightly coat with some avocado or olive oil to prevent sticking.
While the ramen softens, place a large, deep pan on the stove over medium heat. Add the avocado oil. Once shimmering, add the broccoli and lightly season with salt and pepper. Saute for 5-6 minutes or until the broccoli is bright green and fork tender. Set aside.
Season the chicken with salt and pepper, and add to the pan in a single layer, adding more avocado oil if needed. Allow to cook for 2-3 minutes on each side or until cooked through to 165 F. Remove from the pan.
Reduce the heat to medium-low and pour the sauce into the pan, along with the green onions. Allow to simmer and reduce, stirring often for a few minutes.
Once the sauce is thick and fragrant, add the cooked chicken, broccoli, and ramen noodles. Use tongs to coat the noodles in the sauce.
Serve fresh and enjoy!