Mini Vegan Cottage Pie Cupcakes

Name: Mini Vegan Cottage Pie Cupcakes
Ingredients: 1 batch easy vegan mashed potatoes; 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; 1/2 lb. Beyond Beef (or 2 Beyond Burgers or your favorite vegan ground beef); 2 cups mixed veg (canned or frozen, see notes*); 1/4 - 1/2 tsp fresh thyme or rosemary (stems removed, finely chopped, optional)