Ingredients

For the frittata

kosher salt

8 oz. (2 cups) dried penne

9 large eggs

1-1/2 oz. finely grated Pecorino Romano (about 1-1/2 cups using a rasp grater); more for serving

1/2 cup heavy cream

1 Tbs. olive oil

6 oz. thick-cut bacon (about 4 slices), cut crosswise into 1/8-inch strips

1/2 medium yellow onion, thinly sliced (2/3 cup)

6 medium fresh sage leaves, finely chopped

Freshly ground black pepper

For the salad

1/4 cup extra-virgin olive oil

2 Tbs. red wine vinegar

1 small head radicchio (6 oz.), halved and thinly sliced (about 3 cups)

3 oz. (3 lightly packed cups) arugula

2 Tbs. chopped shallot

Flaky sea salt, such as maldon, and freshly ground black pepper

Preparation

Make the frittata Position a rack in the center of the oven and heat the oven to 425°F.

Bring a 4-quart pot of salted water to a boil. Add the pasta and cook according to the package directions. Drain.

In a medium bowl, beat the eggs with a whisk, then whisk in the pecorino and cream.

Heat the oil in a 10-inch, ovenproof, nonstick skillet over medium heat. Add the bacon and cook until lightly browned, about 6 minutes. Add the onion and sage and cook until the onion is translucent and the bacon is crisp, about 5 minutes. Season with 1/4 tsp. salt and 1/4 tsp. pepper. Add the pasta and toss to distribute the ingredients evenly. Gently pour in the egg mixture. Transfer the pan to the oven and bake until a knife inserted in the center comes out clean, 12 to 15 minutes. Loosen the edges with a silicone spatula and slide the frittata onto a cutting board.

Make the salad Whisk together the oil and vinegar in a small bowl. Put the radicchio, arugula, and shallot in a large bowl and toss with just enough of the vinaigrette to coat. Season with 1/2 tsp. sea salt and 1/2 tsp. pepper.

Sprinkle more black pepper on the frittata. Slice and serve with additional pecorino and the salad.

Make Ahead Tips The pasta can be cooked 1 day ahead.

nutrition information (per serving): Calories (kcal): 390; Fat (g): 25; Fat Calories (kcal): 220; Saturated Fat (g): 9; Protein (g): 16; Monounsaturated Fat (g): 11; Carbohydrates (g): 25; Polyunsaturated Fat (g): 3; Sodium (mg): 550; Cholesterol (mg): 245; Fiber (g): 2;