Dice the carrots and potatoes so they are bite-sized chunks.
Bring a pan of water to boil and add the carrots and potatoes. Boil for approximately 10 minutes, until cooked through.
Drain the potatoes and carrots and set aside to cool.
Cook the chicken in the oven for 20 minutes, until the meat is white throughout.
Once cool, shred the chicken into small, thin pieces.
In a large bowl, mix together the lettuce, chicken, potatoes, carrots, corn and peas.
Combine the mayonnaise, sour cream, lime juice and mustard to make the dressing.
Add the dressing to the bowl and mix well until all of the ingredients are coated.
Add salt and pepper to taste.
Top your ensalada de pollo with sliced jalapeno.
Keep refrigerated until you are ready to serve.