Place beef strips, broccoli florets, soy sauce, garlic, honey, brown sugar, sesame oil, rice vinegar, ginger, and seasonings in a large resealable freezer bag. Squish to combine. Remove excess air, seal, and freeze.
Cooking instructions:
Thaw. Line a cookie sheet with parchment paper. Using a slotted spoon, transfer the beef and broccoli to the cookie sheet. Bake at 425° for 10-12 minutes.
In the meantime, place the marinade in a small pot and bring it to a boil over medium-high heat. Stir together the corn starch and water to create a slurry and add that to the boiling marinade. Whisk constantly for 30 seconds until it is dissolved. Add 1/4 cup water and continue to whisk.
Drizzle the beef and broccoli with the sauce before serving. Garnish with chopped green onions and sesame seeds if desired.