For the chicken soup pot, cut the chicken fillets into bite-sized pieces and roll in the grated lime zest. Defrost the spinach and cut it a little smaller.
Chop the onion and sauté in the olive oil until translucent. Pour in the soup and coconut milk, add curry paste and simmer for 5 minutes.
If you like, add the finely chopped chili pepper. Add chicken with lime zest to soup and simmer 4 minutes more. Add spinach and noodles and cook for another 2 minutes.
Season to taste with salt and pepper.