Put crock pot settings on low. Add raw steak slices, beef broth, hot sauce, aminos, mushrooms and green onion. Cook for 3.5-4 hours.
At 3.5-4 hours spoon about 4-6 tablespoons of broth out into a separate bowl and whisk in about 4 tablespoons of arrowroot thickener and return mixed back into the crock pot. Add the broccoli florets for another 20 minutes. Mix. Sauce should be a bit thick.
When finished, spoon onto steamed riced cauliflower for a delicious Chinese takeout