To the blender or food processor, add all of the ingredients for the sauce. Including turmeric and lemongrass if you like. Whirl, blend, yum yum.
Taste for seasoning and maybe add a dash of salt or a tiny bit more soy. Maybe.
In batches, and in a little olive oil over high heat, sauté the shrimp and veggies together until just done. Season with salt and pepper.
Gently heat the coconut sauce. Do not bring to a full boil, as it may break. When hot, pour over the shrimp and the vegetables.