Chop chicken fillets into bite size pieces and set aside.
On a separate cutting board and using a different knife, finely slice the onion, peppers, garlic and coriander.
Heat oil in wok over high heat. Cook chicken pieces until white; remove from wok and set aside.
Stir-fry onions and garlic until lightly browned. Add peppers and stir fry for a further 2 minutes.
Add chicken pieces, curry paste, tomatoes, lemon juice and coriander. Simmer for about 10 minutes.
Serve with basmati rice or naan bread.
Submitted by: GARDEN SHED