1. Adjust oven rack to middle position; heat oven to 375°F. Heat oil in large Dutch oven over medium heat until shimmering. Add onion and cook, stirring occasionally, until well browned, 12 to 14 minutes.

2. Add broth and water; cover and bring to boil. Remove pot from heat; stir in rice and salt. Cover and bake rice until tender, 65 to 70 minutes.

3. Remove pot from oven, uncover, fluff rice with fork, stir in peas, and replace lid; let stand 5 minutes. Stir in mint and lemon zest. Serve, passing feta and lemon wedges separately.

Serves 4 to 6