SLOW COOKER LO MEIN

2 pounds boneless pork shoulder

3 cups broccoli florets

2 carrots, julienned

2 stalks celery, diced

1 cup snow peas

1 (5-ounce) can sliced water chestnuts, drained

1 pound spaghetti

FOR THE SAUCE

1/3 cup reduced sodium soy sauce

3 cloves, garlic, minced

2 tablespoon brown sugar, packed

1 tablespoons sambal oelek (ground fresh chile paste), or more, to taste

1 tablespoon oyster sauce

1 tablespoon freshly grated ginger

1 teaspoon sesame oil