In a small bowl, whisk together all of the ingredients to make the teriyaki sauce.
Trim excess fat from the roast to prevent a greasy end result. Thinly slice beef into ¼″ strips and place in slow cooker. Pour sauce over beef and stir to combine.
Set slow cooker to high heat for 3-4 hours or low heat for 6-7 hours.
When done, serve with fresh chopped green onions and sesame seeds over steamed rice.
Notes
**Beef Roast - You can use a chuck roast, top round roast, london broil, or tri-tip roast.