Brined Sheet-Pan Turkey with Leeks and Potatoes

Uncooked boneless skinless turkey breast

1 pound(s), sliced into 4 small filets

Water

4 cup(s), (enough to submerge turkey)

Table salt

3½ tbsp(s)

Bay leaf

2 leaf/leaves

Lemon(s)

1 item(s), sliced

Rosemary sprig

1 item(s)

Garlic clove(s)

1 clove(s), medium

Peppercorn

1 tbsp(s)

Lemon(s)

1 item(s), zested and juiced

Herbes de Provence

1 tbsp(s)

Whole-grain mustard

1 tbsp(s)

Fresh oregano

2 gm, sprigs

Table salt

1 pinch(es)

Black pepper

1 pinch(es)

Olive oil

2 tbsp(s)

Uncooked leek(s)

2 large, sliced lengthwise

Uncooked baby potatoes

½ pound(s), quartered