In a small bowl, whisk together the mayo, mustard, lime juice and cumin - set aside.
In a large bowl, mix the chicken, jalapeños, cilantro, onion and celery together well, then season well with salt and pepper. Add the mayonnaise mix and use a fork to blend the ingredients together until very well mixed, then stir in the bacon.
Cover and (if possible) allow to sit in the refrigerator a while before serving.
Serve on a bed of mixed greens tossed with some lime juice, chopped cilantro and a dash of olive oil - and add some fresh avocado.