Cook your noodles according to the package instructions. Once they’re cooked and drained, toss them in a bit of sesame oil and salt.
In a large skillet over medium-high heat, warm 1 tablespoon olive oil. Add the meat and ½ teaspoon salt. Break into chunks then let it cook undisturbed for about 3 minutes, or until deeply browned. Break up into smaller chunks and cook for about 2-3 more minutes or until cooked through, stirring occasionally. Transfer to a bowl or plate lined with paper towel.
If more than 1 tablespoon of oil is in the pan, pour some out (depends on meat used). If no oil is in the pan, add 1 tablespoon olive oil. Add white/light green parts of the scallions, cole slaw mix, mushrooms, and remaining ½ teaspoon salt. Cook for about 5 minutes, stirring occasionally, or until the mushrooms are cooked through and cabbage has softened.
Stir the pork back in along with the ginger, garlic, soy sauce, vinegar, and sesame oil. Stir for 30 seconds to 1 minute to mix everything together.
If making slaw, in a medium bowl, add the coleslaw mix, vinegar, sesame oil, and salt. Toss to coat.
Serve the pork mixture over a bed of noodles or slaw (or both, see recipe note). Top with the dark green parts of the scallions, sesame seeds, and sriracha (if using).