Step 1

Set the Instant Pot or other multicooker to Sauté and add 1 tablespoon of the extra virgin olive oil. When the oil is hot add the shrimp and 1/4 teaspoon of the salt. Sauté the shrimp until just cooked through, 3 to 4 minutes, then transfer to a medium bowl. Press Cancel. Toss the shrimp with the lemon zest and crushed red pepper, if using.

Step 2

Set the Instant Pot to Sauté again. Add the remaining 2 tablespoons olive oil and shallot and cook, stirring frequently, until the shallot begins to soften, 2 to 3 minutes. Add the rice and cook, stirring, until the rice is translucent, about 2 minutes. Add the broth and another 1/2 teaspoon salt. Stir to scrape up any brown bits on the bottom of the pot. Lock the lid and set to cook on high pressure for 6 minutes.

Step 3

When cooking is complete, press Cancel and carefully quick-release the pressure.

Step 4

Stir for a minute or two to thicken the risotto, then add the spinach, butter, and remaining 1/4 teaspoon salt, stirring just until the spinach is wilted. Serve topped with the shrimp and their juices.