INGREDIENTS
2 tsp
canola oil
1 cup
finely chopped white mushrooms
1 cup
finely chopped onion
1
carrot, peeled and finely chopped
1
stalk celery, finely chopped
1 lb
lean ground beef (7% or less)
1/2 cup
quick cooking or old-fashioned oats (not instant)
2
large egg whites (I use 1 whole egg instead)
3 tbsp
ketchup (plus more for brushing on top)
1 tbsp
Worcestershire sauce
1 tsp
dried thyme leaves (not ground thyme)
1 tsp
salt
1/4 tsp
black pepper
1/2 tsp
garlic powder (or 1 teaspoon minced fresh)