In a large cooking pot, add olive oil and red pepper flakes. Heat to medium until the oil starts to sizzle. Stir in leeks, garlic and cook for 2 more minutes.
Pour in chicken broth and coconut milk. Then soy sauce, minced ginger and frozen peas (and frozen carrot bits works too).
Dice precooked chicken (or drain a large can of cooked chicken) and add that in to your pot. Stir contents. When bubbling pour in your noodles. Allow to simmer for about 15 minutes until veggies and noodles are tender to your liking.
Taste, adjust seasonings if you think it needs a bit more salt and pepper and serve.