Crock Pot Chow Mein

When it's hot outside or even freezing - cooking a meal in my Grandmother's Crock Pot seems to make the day easier.  Here is her pork chow mein recipe.  Throw it in while you are making breakfast and it will be done for a lazy lunch and early dinner.  I love to pair this with lo mein noodles instead of rice as I believe it elevates the dish.

1.5-2 lbs boneless pork chops, halved and sliced diagonally on the bias
4 carrots, cut into coins
4 celery stalk, sliced
1 bunch green onions, sliced (included green parts)
1 8 oz. can sliced water chestnuts, dained
1 14.5 oz. can bean sprouts, drained
2-3 garlic cloves, chopped
1/2 tsp. grated ginger
1/2 tsp. red pepper flakes
1 tbsp. sugar
1 cup chicken stock
1/3 cup soy sauce

Added at end:
1/3 cup water
1/4 cup cornstarch

Place all but water and cornstarch into crock of slow cooker , stir and cover.  Set temperature to high and cook for six hours.  Mix cornstarch and water together to form slurry, then pour into crock.  Cook until sauce becomes thickened to desired liking, roughly 15 minutes.  Serve.