Whisk together all ingredients for the marinade. Place raw ground beef in a medium sized bowl, pour marinade over beef, stir to fully combine. Set aside for 20 minutes.
Heat a sauté pan over medium high heat. Add one tablespoon of oil. Cook the green beans, stirring often, until starting to blister, 3-4 minutes. Add in ginger, garlic, red pepper flakes, cook 30-60 seconds until fragrant. Remove from pan and reserve on a plate.
Add beef, cook until browned.
Add green beans back to the pan, stir to combine.
Continue cooking until excess moisture has evaporated.