Before you start, organize all your ingredients—mise en place is the real secret to a successful 30-minute dinner. Slice 1 1/2 pounds of flank steak against the grain into thin strips (about 1/4-inch thick); cutting against the grain shortens the muscle fibers and ensures tender bites. In a medium bowl, whisk together 2 tablespoons soy sauce, 1 tablespoon sesame oil, 1 tablespoon minced garlic (save the remaining garlic for the sauce), 1 teaspoon grated fresh ginger, and 1/2 teaspoon black pepper. Add the sliced steak to the marinade, toss well to coat every piece, and let it sit at room temperature while you prep the vegetables. This quick marinade seasons the meat and helps create a beautiful crust during the sear. Next, slice the zucchini into half-moons, peel and julienne the carrots, cut the broccoli into small bite-sized florets, and thinly slice the yellow onion; keep them separate or grouped together on a large plate because they have different cooking times. In a small bowl, combine the savory sauce ingredients: 1/4 cup low-sodium soy sauce, 2 tablespoons mirin, 1 tablespoon rice vinegar, 1 tablespoon honey, and 2 teaspoons sesame oil; stir in the remaining garlic and ginger. Finally, make a slurry by whisking 1 teaspoon cornstarch with 3 tablespoons water—this will thicken the sauce at the end and give it the glossy, hibachi-style finish. Set everything within arm’s reach of the stove.

Rinse 1 cup jasmine rice and 1/2 cup quinoa together in a fine-mesh sieve under cold running water until the water runs clear; this removes excess starch and prevents clumping. Transfer the grains to a medium saucepan and add 2 1/4 cups water or chicken broth plus 1/2 teaspoon salt. Bring to a full boil over high heat, then reduce the heat to low, cover tightly, and simmer for 15 minutes. After 15 minutes, turn off the heat but leave the pot covered for another 10 minutes; the residual steam finishes the cooking and makes every grain light and fluffy. Do not lift the lid during the rest or you’ll lose precious steam. When ready to serve, fluff the rice with a fork to separate the grains. If you’re using a rice cooker, simply set it and forget it while you cook the steak and vegetables.

Heat a large cast-iron skillet or flat-top griddle over high heat until it’s just smoking—this takes about 3 minutes. Add 1 tablespoon of neutral oil and swirl to coat. Working in batches if needed, lift the steak strips from the marinade, letting any excess drip off, and place them in a single layer in the hot pan. Important: do not overcrowd the pan; if you add too much meat at once, it will steam rather than sear, and you’ll lose that charred hibachi flavor. Sear without moving for 60 to 90 seconds per side, until the bottom develops a deep golden-brown crust and the edges look charred. The steak should be medium-rare when an instant-read thermometer registers 130°F (54°C); if you prefer well-done, cook a little longer. Transfer the steak to a clean plate and let it rest while you cook the vegetables. Resting allows the juices to redistribute so the meat stays moist.

The same skillet is full of caramelized bits—flavor gold! Keep the heat on high and add the remaining 1 tablespoon of neutral oil if the pan looks dry. Add the sliced onion and julienned carrots first because they take longer to soften; stir-fry for 2 minutes, tossing constantly. Add the zucchini half-moons and broccoli florets, then season with a pinch of salt and pepper. Continue stir-frying for 3 to 4 minutes, until the vegetables are crisp-tender with a few charred spots but still bright in color. You want them crunchy, not soggy, so keep them moving and resist the urge to add water. If you notice them sticking, a tiny splash of water or sake can help deglaze without making them steamy.

Turn the heat down to medium and pour the prepared savory sauce mixture into the skillet with the vegetables. Use a wooden spoon to scrape up the browned bits from the bottom—this deglazing step adds deep umami to the sauce. Let the sauce bubble for 1 minute to slightly reduce, then give the cornstarch slurry a quick stir and pour it into the pan. Stir constantly as the sauce thickens, about 20 to 30 seconds, until glossy and thick enough to coat the back of a spoon. Return the rested steak and any accumulated juices to the skillet, along with the vegetables, and toss everything together for 30 seconds so every piece is coated in the shiny sauce. The cornstarch slurry needs to be stirred into the hot sauce immediately to avoid lumps.

Fluff the cooked rice and quinoa blend with a fork, then divide it equally among four bowls. Spoon the hibachi steak and vegetable mixture over the top, making sure each bowl gets a good portion of the savory sauce. Sprinkle with toasted sesame seeds and sliced green onions for a burst of color and nutty aroma. If you like extra heat, drizzle with sriracha mayo or a pinch of crushed red pepper. Serve immediately while everything is hot.

These hibachi steak bowls are best enjoyed right away, but they also make excellent leftovers. To serve, place bowls on the table with extra sauce on the side. If storing, let the components cool completely before transferring to airtight containers; keep the rice, steak, and veggies in one container or separate them depending on your preference. Refrigerate for up to 3 days. Reheat gently in a microwave or a skillet with a splash of water to restore moisture. You can also freeze the steak and vegetables for up to 2 months, but the rice may become mushy upon thawing—cook fresh rice or quinoa when you’re ready to eat.