Use a stick blender to blend to a smooth sauce, then pour into the pan with the mushroom mixture. Add the cooked pasta to the pan and toss everything together. Season to taste with salt and pepper ...
Transfer the chicken to a board and tear into pieces with two forks. To serve, place the chicken on the warmed tortillas and top with the lettuce, avocado, pickled onions and soured cream.
Note: For the sauce, I like to use the pre-sliced large salami sold at supermarket deli counters. My trick for packing as much spice and flavour as possible into baked chicken? Coat it with someth ...