In a bowl, combine the sliced beef with all the marinade ingredients until evenly coated. Let it marinade for about 20 minutes on your countertop.
Meanwhile, make the stir fry sauce for the linked recipe directions. Should take less than 5 minutes. Cook the noodles over the stovetop according to package directions, but undercook by 1 minute. Drain and rinse through cold water to stop the cooking process, and set aside. The noodles will finish cooking later.
Par-cook broccoli: In the same skillet you’ll use for the stir fry, par-cook the broccoli florets with about 2 to 3 tablespoons of water, about 3 minutes, until bright green and semi-tender. Cover with a lid to allow it to steam. Remove from skillet and set aside.
Sear beef: In the same skillet, heat vegetable or canola oil over HIGH heat. Once hot, cook the marinated beef for just 1 minute per side until seared. Don’t overcrowd, do it in batches if needed. Remove from skillet and set aside.
Stir fry veggies and aromatics: In the same skillet over high heat, add a few more drizzles of oil. Add bell peppers and cook for 1 to 2 minutes. Then add the ginger, garlic, green onions (white part) and cook for 30 seconds until fragrant. Return broccoli and stir fry for another 1 to 2 minutes until crisp tender.
Bring everything together: Return beef and noodles. Add the stir fry sauce, adjusting the quantity to taste (I use about ¼ to ⅓ cup). Toss to combine for another 1 minute until incorporated.
Garnish with sesame seeds and the green part of the scallions. Enjoy!