- 1 garlic clove, coarsely chopped
- 2 cups (packed) fresh basil leaves
- 1/2 cup plus 2 tablespoons coarsely chopped toasted almonds, divided
- 1 teaspoon kosher salt, plus more to taste
- 3/4 cup extra-virgin olive oil
- 1 pound penne
- 8 ounces green beans (about 2 cups), trimmed, thinly sliced on a bias
- 1/4 cup grated Parmesan
- Pulse garlic, basil, 1/2 cup almonds, and 1 tsp. salt in a food processor until combined. With the motor running, slowly add oil and pulse again until smooth. Transfer to a large bowl.
- Cook penne in a large pot of boiling salted water, stirring occasionally, and add green beans 30 seconds before pasta is al dente. Drain pasta and green beans, reserving 1 cup pasta cooking liquid, and add to pesto. Stir vigorously and add pasta cooking liquid as needed to fully coat. Season with salt.
- Transfer pasta mixture to a serving bowl or platter and top with Parmesan and remaining 2 Tbsp. almonds. Serve immediately or at room temperature.