Cook ramen noodles according to package directions, discarding the seasoning packet, if included. Drain and rinse with cold water; set aside.

Heat a wok or large deep skillet over medium-high heat. When the pan is hot, add vegetable oil using a spatula to spread it around the pan to lightly coat.

Add onion and coleslaw mix. Cook, stirring frequently, for 3 minutes until cabbage is slightly softened but still retains some crunch.

Pour in the sauce then reduce heat to low. Continue cooking for an additional 1 minute.

Add noodles, tossing to coat with sauce and distributing veggies throughout.

Sprinkle with scallions and serve hot.