INGREDIENTS
1 1/2
lbs Ground beef, lean
1/2 tsp
Garlic power
1 tsp
Onion powder
3
lbs Russet potatoes
1
bag Vegetable medley, frozen
1
Egg yolk, large
2 tbsp
Ketchup
2 tbsp
All-purpose flour
3 tsp
Kosher salt
1 tsp
Vegetable oil
4 tbsp
Butter, unsalted
1/2 cup
Whole or 2% milk
1/2 cup
Water