Step 1

Remove zest from 1 lemon in wide strips with a vegetable peeler or paring knife. Slice lemon in half; set aside.

Step 2

Heat 2 Tbsp. extra-virgin olive oil in a medium heavy-bottomed saucepan over medium. Add lemon zest and 8 scallions, thinly sliced, and cook, stirring often, until scallions are bright green and beginning to soften, about 2 minutes. Add 1 cup basmati rice, rinsed, drained well, 1½ tsp. Diamond Crystal or 1 tsp. Morton kosher salt, and half of 1 bunch dill, tough stems trimmed, finely chopped, and cook, stirring, until rice is coated in oil, about 30 seconds. Pour in 1¼ cups plus 2 Tbsp. water and bring to a boil. Reduce heat to low, cover pan, and simmer until rice is nearly tender and water is absorbed, 13–15 minutes.

Step 3

Meanwhile, place one 10-oz. package frozen spinach in a fine-mesh sieve set over a medium bowl and pour in boiling water to cover. Let sit until thawed, 5–10 minutes. Drain well and transfer to a clean kitchen towel; squeeze hard to expel as much excess moisture as possible. Transfer spinach to a cutting board and run through a couple times with a chef’s knife to finely chop.

Step 4

Remove pan from heat, uncover, and top rice with spinach. Re-cover and let sit 10 minutes to allow spinach to steam. Using a fork, fluff rice and incorporate spinach. Stir in remaining half of dill and juice from 1 reserved lemon half. Season with freshly ground black pepper.

Step 5

Transfer rice to a bowl and drizzle remaining 1 Tbsp. extra-virgin olive oil over.