one. Preheat oven to 375 F, with one rack in the middle situation and an additional four inches from broiler. Line a large baking sheet with foil.
2. Whisk alongside one another soy sauce, sesame oil, brown sugar, garlic, and ginger in a medium bowl. Measure out one/four cup of the marinade. Increase steak to remainder, turning to coat.
three. Toss broccoli florets and mushrooms on geared up baking sheet with olive oil and reserved marinade. Spread greens out in an even layer, transfer to middle rack in oven, and roast until just tender, about ten minutes. Take away baking sheet from oven and set oven to broil.
four. Push broccoli and mushrooms to edges of baking sheet and place steak in the middle, drizzling around any remaining marinade. Slide baking sheet beneath broiler and broil until steak commences to char on the outdoors and a thermometer inserted into thickest element registers 125 F for unusual or 135 F for medium-unusual, three to 5 minutes for each aspect.
5. Remove baking sheet from oven and enable steak rest, loosely lined with foil, for ten minutes prior to thinly slicing in opposition to the grain. Serve heat, with greens alongside.