8 medium red onions, peeled, trimmed
1 tablespoon kosher salt plus more
1/2 cup extra-virgin olive oil, divided
4 garlic cloves, finely chopped
1/2 pound ground beef or lamb
2 dried bay leaves
2 teaspoons dried oregano
1 1/2 teaspoons dried mint
5 cups cooked white rice
1 cup dry white wine, divided
4 tablespoons fresh lemon juice, divided
1/2 cup finely chopped fresh dill
1 teaspoon finely grated lemon zest
Freshly ground black pepper