Chicken with avocado

2 lbs boneless chicken breast halves 2 tablespoons taco seasoning mix 1 tablespoon vegetable oil 1/2 cup chopped onion 1/2 cup chopped celery 2 teaspoons[...]

1 chicken breast , chopped 1 garlic clove , chopped finely 1/4 onion , in thin slices 1/2 green pepper , in thin slices 4 mushrooms , sliced 1/2 jalapeno,[...]

1 pound shredded, cooked chicken 1 (15 ounce) can whole peeled tomatoes , mashed 1 (10 ounce) can enchilada sauce 1 medium onion , chopped * 1 (4 ounce) can[...]