Pork Chow Mein
["1 lb. boneless pork loin", "2 garlic cloves, minced", "4 Tbsp. soy sauce, divided", "1 c. chicken broth", "2 Tbsp. cornstarch", "1/2 to 1 tsp. ground ginger", "1 Tbsp. cooking oil", "1 c. thinly sliced carrots", "1 c. thinly sliced celery", "1 c. chopped onion", "1 c. coarsely chopped cabbage", "1 c. coarsely chopped fresh spinach", "hot, cooked rice (optional)"]
["Cut pork into 4 x 1/2 x 1/4-inch strips.", "Place in a bowl. Add garlic and 2 tablespoons soy sauce.", "Cover and refrigerate 2 to 4 hours.", "Meanwhile, combine broth, cornstarch, ginger and remaining soy sauce; mix well and set aside."]
["boneless pork loin", "garlic", "soy sauce", "chicken broth", "cornstarch", "ground ginger", "cooking oil", "carrots", "celery", "onion", "cabbage", "fresh spinach", "rice"]