Step 1

Bring a large pot of salted water to a boil and cook the noodles according to the package's directions. Reserve a few teaspoons of the water.

Step 2

Meanwhile, heat the canola oil in a wok or large pan over medium heat. Add the ginger, garlic, and white parts of the scallions; cook, stirring often, just until the scallions begin to soften, about 1 minute. Add the red pepper flakes and cook them for about 30 seconds, frequently stirring them.

Step 3

Add the shrimp to the pan and sprinkle them with the salt. Spread the shrimp into a single layer in the pan, and cook them for about 2 to 3 minutes per side. They're done when they're pink and curve into a "C" shape (Be careful not to overcook them.) When they're just about done, add the soy sauce and sesame oil and stir everything together. Taste to see if there's enough salt, and add more if needed.

Step 4

Turn off the heat, add the cooked noodles to the pan, and toss everything together. Garnish with the sliced green scallions, toasted sesame seeds, and a few teaspoons of the noodle water to help moisten it if it looks a little dry.