
Place a large pot, (10″ Dutch oven works well) over medium high heat. When the pan is hot but not smoking, add 1 tablespoon of the oil along with the cubed chicken.
Cook stirring occasionally as the chicken browns, then remove it from the pan and set it aside when it’s done.
Add the remaining tablespoon of oil to the pan along with the onion, garlic, and ginger. Cook stirring frequently until the onion turns translucent, 1-2 minutes.
Then add the curry paste and sauté briefly using a wooden spoon to break up the paste.
Next add the bell pepper, coconut milk, and chicken stock. Bring the soup to a boil, then reduce the heat to maintain a simmer. Cook until the bell pepper is tender, 8-10 minutes.
Turn off the heat, then stir in the fish sauce. Add the chopped spinach and stir it in to wilt.
Finally add the rice noodles and use the back of the spoon to carefully submerge them into the hot soup. Let the soup stand for about 3 minutes, or according to the package cooking time for the noodles. Stir to distribute the cooked noodles.
Season to taste with sea salt if needed and serve immediately with the cilantro, green onions, and lime wedges.