For the meatloaf layer
01 -
1 1/2 lb (680 g) 85 percent lean ground beef
02 -
3/4 cup (65 g) plain breadcrumbs or panko
03 -
1/3 cup (80 ml) whole milk
04 -
1 large egg
05 -
1/2 cup (70 g) finely minced yellow onion
06 -
2 garlic cloves, minced
07 -
1 tablespoon Worcestershire sauce
08 -
1 teaspoon kosher salt
09 -
1/2 teaspoon black pepper
10 -
1/3 cup (80 g) ketchup
11 -
1 tablespoon yellow mustard
For the cheddar shells
12 -
8 oz (225 g) medium pasta shells
13 -
2 tablespoons unsalted butter
14 -
2 tablespoons all-purpose flour
15 -
1 3/4 cups (420 ml) whole milk, warmed
16 -
1 teaspoon Dijon mustard
17 -
1/2 teaspoon smoked paprika
18 -
2 1/2 cups (280 g) freshly shredded sharp cheddar cheese, divided
19 -
2 tablespoons chopped fresh parsley