Whisk soy sauce, ginger, hoisin sauce, rice wine vinegar and red pepper flakes together in a small bowl.
In a separate bowl, whisk corn starch with 2 tbsp water until combined, then add to the bowl with the rest of the sauce ingredients.
Add 1 tbsp of sesame oil to a skillet and heat on medium high. Add onions and cook for 4 minutes. Add garlic and stir.
Add ground pork to the skillet and cook until no longer pink, stirring regularly.
Boil water and cook ramen noodles for 2 minutes. Drain then toss with 1 tbsp of sesame oil.
Add bell peppers and coleslaw mix to the skillet. Cover and cook for 4 minutes, stirring once.
Add cooked ramen to the skillet and toss all with prepared sauce. Allow to cook and additional few minutes.
Top with sliced green onions and serve.