Cut the chicken into bite-size pieces.
Finely chop the onion and garlic, then thinly slice the chilli.
Heat the oil in a casserole dish and gently fry the onion for about 8-10 minutes, until soft.
Add the chilli, garlic and spices, then stir- fry for another minute or so.
Turn up the heat and add the chicken pieces. Stir-Fry until the chicken has changed colour.
Add enough water to just cover the chicken. Bring to the boil, turn down the heat, cover, and simmer for 15 minutes.
Add the peas and simmer for 3-4 minutes, until they are tender. Add lemon zest and juice. Season with salt and pepper and serve with the parsley scattered on top.