Preparation

• Preheat oven to 350 degrees.
  Toast the pumpkin seeds on a baking sheet until golden brown.
  Roast the poblanos over a gas flame or under the broiler as close to the heat as possible, turning frequently, until charred all over. Transfer to a paper bag and let steam for 10 minutes. Peel the poblanos and discard the stems, seeds and ribs. Finely dice the poblanos.
  Heat the oil. Season the chicken with salt and pepper. Cook until well browned. Add the wine, cover and simmer until the chicken is cooked through. Transfer the chicken to a plate and let cool. Cut the chicken into strips and and transfer to a bowl. Stir in the poblanos, jicama, serrano, 1/4 cup of the pumpkin seeds and three tablespoons of coriander.
  
  Combine mayonnaise and the sour cream. Add to the chicken salad and toss to coat. Season with salt and pepper.
  Sprinkle the remaining 1 tablespoon of pumpkin seeds and 1 teaspoon chopped coriander over the salad. Serve with baby lettuce and lime wedges.