Take alt, pepper, chicken seasoning, lemon juice, oil and mix well. Add chicken in and mix well. Leave to marinate to 1 hour. Heat grill pan place chicken on grill pan cook for 8 to 10 mins on each side. Take it off the heat.
Take buns and slit it open. Grill buns till cooked.
Take buns and spread ketchup. Top with lettuce and chicken. Place tomatoes and cover with bun.