In the Instant Pot insert, add the chicken stock, coconut milk, sesame paste, red curry paste, garlic, ginger, chicken breast, and mushrooms. Cook on high pressure for 5 minutes.While the Instant Pot is doing it’s thing, slice up your peppers and cook and drain your noodles and divide them between two deep bowls.When the Instant Pot is done, quick release the pressure. Carefully remove the chicken and shred. Add the chicken to the bowls with the noodles.Stir the peppers and spinach into the soup. Taste the soup and adjust the seasoning with fish sauce, salt, or even more curry paste if needed, then divide evenly between the two bowls.Finish with lime and cilantro and enjoy!Note: If you don’t have an Instant Pot, you can make it in a regular pot on the stove. Add the chicken stock, coconut milk, sesame paste, red curry paste, garlic, ginger, chicken breast, and mushrooms to a pot and bring to a simmer over medium heat. Continue to simmer until the chicken is cooked through, about 10-15 minutes, depending on the size of the chicken breast. Continue with the remaining steps.