1
Preheat oven to 450 degrees. Wash and dry all produce. Halve, peel, and thinly slice onion. Peel and finely chop carrot. Finely chop celery. Zest and quarter lemon (quarter both lemons for 4 servings) Halve, core, and dice half the apple into ½-inch pieces (dice whole apple for 4). Rinse and pat shrimp dry with paper towels.