Yields: 4 servings
Preheat oven to 425˚F.
In a 10-inch, nonstick skillet, sauté the leeks in 1 tablespoon EVOO over medium-high heat. Once the leeks become soft, remove and set aside. Reserve the skillet for later.
While the leeks are cooking, in a medium-size saucepot over medium heat, cook the pancetta until golden brown. Add in garlic and cook for 1-2 minutes, until fragrant. Add the stock to the pancetta and garlic, and let come up to a boil.
Once the stock comes to a boil, add the polenta in a slow and steady stream and stir until thick. Add the cheese and some black pepper to the polenta then remove from heat. Pour into the reserved skillet and lightly press it up the sides and bottom of the skillet, forming a crust around the entire pan. Spread the reserved leeks in the bottom of the polenta crust.
In a large mixing bowl, whisk up the eggs, salt, pepper and the pieces of cold butter. Pour mixture over the leeks in the polenta crust then transfer to the oven and bake until golden brown and cooked though, about 20 minutes.
While the frittata is in the oven, toss the tomatoes, arugula, remaining tablespoon of EVOO, lemon, salt and pepper together in a mixing bowl. Once the frittata is golden and firm in the middle, remove from oven and top with the dressed baby tomatoes and arugula.
