Make the broth: Bring 6 cups water and 1 teaspoon salt to a simmer in a medium saucepan over medium heat. Add the leeks and cook until tender, 3 to 4 minutes; remove with a slotted spoon to a bowl. Adjust the heat to keep the broth at a gentle simmer.
Meanwhile, heat 1 tablespoon butter in a wide saucepan over medium-high heat. Add the rice and cook, stirring, 1 minute. Add the wine and cook, stirring, until almost evaporated, about 1 more minute.
Add 2 cups of the hot leek broth to the rice; cook, stirring occasionally, until almost absorbed, about 6 minutes (adjust the heat to keep the risotto at a simmer). Add 1 more cup broth and cook, stirring, until almost absorbed, about 5 more minutes. Add the leeks, peas and 1 more cup broth and cook, stirring, until almost absorbed, about 5 more minutes. Taste the rice: If it is not fully cooked, add a little more broth and continue to cook, stirring, until al dente.
Stir in the ham and remaining 1 tablespoon butter. Remove from the heat; stir in 2/3 cup pesto, the mozzarella and parmesan. Season with salt. Divide among bowls and top with the remaining pesto.
Place a rimmed baking sheet in the lower third of the oven; preheat to 450 degrees F. Make the pesto: Pulse the parsley, basil, scallions, whole garlic, Worcestershire sauce, lemon zest and the juice of 1 lemon in a food processor. With the motor running, add 1/4 cup olive oil.
Coat the pork with 1/4 cup of the remaining pesto. Mix the remaining 1/2 cup pesto in a small bowl with 1 tablespoon hot water and the remaining lemon juice; season with salt and pepper.
Heat 1 tablespoon olive oil in a large skillet over medium-high heat. Add the pork and brown all over, about 4 minutes. Transfer to the hot baking sheet and roast until a thermometer registers 145 degrees F, about 15 minutes. Meanwhile, cook the polenta as the label directs.
Heat the remaining 1/2 tablespoon olive oil in the skillet over medium heat. Add the sliced garlic and cook 1 minute. Add the spinach, 3 tablespoons of the pesto mixture and 1/4 cup water; cook, stirring, until wilted, 3 minutes. Slice the pork; serve with the polenta, spinach and remaining pesto mixture. Season with salt and pepper.
Photograph by Antonis Achilleos
Recipe courtesy Food Network Magazine