Combine all of the ingredients a small bowl and mix well until combined. Season further to taste and set aside.
For the sloppy joe
Using a large skillet, add the chopped onion, ground beef, and salt and saute on medium heat. Use a wooden spoon or spatula to break up the ground beef into small crumbles. Stir until browned. Remove from heat and drain the majority of the fat from the pan.
Season with garlic and ginger and stir in the remainder of the ingredients (reserving the green onion). Reduce heat to a low simmer and simmer for 6-8 minutes to allow the sauce to thicken.
Top with green onion and slaw. Serve by itself, or stuffed inside a sweet potato.
Notes
All nutrition facts are estimations and will vary. Nutrition facts do not include optional sweet potato.