Cook the veggies in a pan over medium heat until the just begin to soften, or until soft depending on your preference. You can cook them all at once if you don't mind the different textures of each, or cook onions first, then harder veggies like carrots and broccoli. Finally adding those that cook quickly, like zucchini and greens, last.
Add in the 1 cup teriyaki sauce and stir until mixed well.
Serve over rice, quinoa or anything else you prefer.
You can use any veggies you want, fresh or frozen, just make sure the total amounts to about the same.
My homemade teriyaki sauce makes about 2 cups. Use half for the stir fry and save the other half for drizzling over or for another recipe.