Green Goddess Pasta Salad

Name: Green Goddess Pasta Salad
Ingredients: 2 lemons; 1/2 cup olive oil; 1 1/4 cups basil leaves , tightly packed; 1 cup baby spinach leaves , tightly packed; 2 cloves garlic; 1/4 cup raw cashews; 1/3 cup nutritional yeast or grated Parmesan cheese; 1 teaspoon salt , plus more to taste; 1/2 teaspoon freshly ground black pepper; 1 tablespoon salt; 1 pound dry medium pasta shells; 1 1/2 cups frozen peas; 12 spears thin green asparagus , tough stems trimmed and cut into 1/2-inch pieces; 1 fennel bulb , cored and very thinly sliced; 6 ounces drained, jarred pitted green olives; 3 tablespoons finely chopped chives; 3 scallions , thinly sliced