Greek Beef Stuffed Onions (Salantourmasi)

These Greek beef stuffed onions, or salantourmasi, are so delicious. Onions are separated into layers, filled with Greek-seasoned beef and rice, and then slow-baked in a tomato-onion broth.

Ingredients

4 large yellow onions, peeled

1/4 cup olive oil, plus more for drizzling

1 pound ground beef, divided

1 cup diced onion

1 teaspoon freshly ground black pepper

2 teaspoons kosher salt

1 pinch cayenne pepper

4 garlic cloves, minced

1 teaspoon dried oregano

2 tablespoons tomato paste

3/4 cup white long grain rice

2 tablespoons red wine vinegar

1 1/2 cups chicken broth

1/3 cup crumbled Greek feta

1/4 cup chopped fresh parsley

1/4 cup chopped fresh mint

1/4 cup chopped fresh oregano, plus more for garnish