stick butter, softened plus 4 tablespoons
2 cloves garlic, grated or pasted
1 shallot, grated or pasted
2 to 3 sprigs fresh oregano
1/4 cup flat-leaf parsley
Zest and juice of 1 lemon
2 to 3 pounds boneless turkey breast, skin-on or 2 full bone-in, skin-on chicken breasts
Salt and pepper
3 pounds Yukon gold potatoes, cubed
2 cups turkey or chicken stock, divided
1/4 cup EVOO – Extra Virgin Olive Oil
3/4 to 1 cup Greek feta crumbles
1/2 cup pitted green and Kalamata black olives, chopped
2 tablespoons flour
2 tablespoons Worcestershire sauce
1 egg yolk, beaten