Vegan Lettuce Wraps

Name: Vegan Lettuce Wraps
Ingredients: 4 oz. mushrooms (diced); 8 oz. can of water chestnuts (diced); 2 Tbsp minced ginger; 4 cloves garlic (minced); Sliced green onions (optional); Iceberg lettuce leaves; 150 g dried soy or pea protein crumbles or 1 lb of vegan "meat" (I have more info in the blog post!); 3 - 4 cups vegan beef broth or veggie broth (or water); 1 cup Hoisin sauce; 2 Tbsp soy sauce; 1 Tbsp rice vinegar; 1 Tbsp sambal; 2 tsp cornstarch; 1/4 cup water; 3 Tbsp soy sauce; 2 Tbsp maple syrup; 1 Tbsp rice vinegar; 1 Tbsp sriracha; 1 - 2 tsp Chinese hot mustard