Place each chicken breast in center of a large square of aluminum foil. Salt and pepper them, and fold up sides toward the center to form a dish. Heat the mushroom soup and beer in a saucepan, stir until smooth, then pour in all other ingredients. Pour the liquid over each chicken breast and fold and seal each package tightly so the liquid cannot run out. In an oven preheated to 400 degrees, bake for 20 minutes; then turn the packages over and bake for another 20 minutes.