For the beef
01 -
1.5 lb (680 g) ground beef (85% lean)
02 -
1 medium yellow onion, diced
03 -
3 cloves garlic, minced
04 -
1 tsp kosher salt
05 -
1/2 tsp black pepper
For the sauce and layers
06 -
3 lb (1.4 kg) russet potatoes, peeled and sliced 1/4 inch thick
07 -
2 tbsp unsalted butter
08 -
2 tbsp all-purpose flour
09 -
1 1/2 cups (360 ml) whole milk
10 -
1 cup (240 ml) low-sodium chicken broth
11 -
1 tsp garlic powder
12 -
1/2 tsp onion powder
13 -
1/2 tsp smoked paprika
14 -
2 cups (200 g) shredded sharp cheddar cheese
15 -
1 cup (100 g) shredded mozzarella cheese
16 -
Fresh parsley, chopped (optional)