Marinate the steak: Whisk together the marinade ingredients, add the flank steak, and let it marinate for at least 1 hour (or overnight).
Prep the salad: Chop all the veggies and toss them in a big bowl with the vinaigrette.
Grill the steak: On a hot grill, sear and cook the steak to your preferred doneness. Let it rest, then slice thin against the grain.
Build the bowls: Start with a rice base, add a generous scoop of the chopped salad, and top with slices of steak.
Serve and enjoy — great with a drizzle of sriracha or a sprinkle of sesame seeds.