Remove the noodles from the refrigerator to bring to room temperature. Wash and dry the fresh produce. Cut off and discard the stem of the pepper. Halve lengthwise; remove the ribs and seeds, then medium dice. Thinly slice the scallions, separating the white bottoms and hollow green tops. Cut off and discard the root ends of the bok choy; roughly chop. In a bowl, combine the soy glaze, sesame oil, vinegar, 1/4 cup of water, and as much of the gochujang as you’d like, depending on how spicy you’d like the dish to be.

In a large pan (nonstick, if you have one), heat a drizzle of olive oil on medium-high until hot. Add the beef; season with salt and pepper. Cook, stirring frequently and breaking the meat apart with a spoon, 5 to 7 minutes, or until the beef is browned and cooked through. Leaving any browned bits (or fond) in the pan, transfer to a plate.

To the same pan, add the diced pepper and sliced white bottoms of the scallions; season with salt and pepper (if the pan seems dry, add a drizzle of olive oil). Cook on medium- high, stirring occasionally, 2 to 3 minutes, or until slightly softened. Add the chopped bok choy; season with salt and pepper. Cook, stirring frequently, 2 to 3 minutes, or until the vegetables are softened and the bok choy leaves are wilted.

Using your hands, carefully separate the noodles. To the pan, add the noodles, cooked beef, and sauce (carefully, as the liquid may splatter). Cook, stirring frequently, 1 to 2 minutes, or until the noodles are heated through and the sauce is thickened. Turn off the heat. Taste, then season with salt and pepper if desired. Serve the finished beef and noodles garnished with the sliced green tops of the scallions. Enjoy!