Spinach, Feta, and Rice Casserole

Name: Spinach, Feta, and Rice Casserole
Prep time: 15 min
Cook time: 35 min
Total time: 50 min
Cuisine: American
Ingredients: 1 cup thinly sliced scallions; 1/4 cup drained, chopped sun-dried tomatoes in oil; 1 finely chopped garlic; 1 teaspoon dried oregano; 1 (16 ounce) package frozen chopped spinach; 3 cups vegetable broth; 1 1/2 cups uncooked long-grain white rice; 1 1/2 teaspoon grated lemon zest plus 2 tablespoon fresh juice (from 1 lemon); 1 teaspoon kosher salt; 3/4 teaspoon black pepper; 6 ounces feta cheese, crumbled (about 1 1/2 cups), divided; 1/2 cup chopped fresh dill