1hr · 15 servings You'll need: • leftover vegan mashed potatoes For the Gravy: • 1/2 cup + 2 Tbsp warm water • 2 Tbsp all-purpose flour • 1 Tbsp nutritional yeast • 1 Tbsp soy sauce • 1 tsp vegan Worcestershire • 1/2 tsp onion powder • 1/4 tsp ground mustard • 1/8 tsp black pepper • 1/8 tsp celery salt For the Filling: • 1/2 lb. Beyond Beef (or 2 Beyond Burgers) • 2 cups mixed veg (canned or frozen) • 1/4 - 1/2 tsp fresh thyme or rosemary (stems removed, finely chopped), optional