Spaghetti For Mario | Emerils.com

Ingredients

• 1 head cauliflower, cut into florets and thick stems discarded
• 3/4 cup walnut halves or pieces
• 1 (2-ounce) tin oil-packed anchovy fillets
• 5 cloves garlic, peeled
• 2 cups packed baby arugula
• 1 cup packed fresh flat-leaf parsley leaves
• 1/2 cup extra-virgin olive oil
• 3/4 teaspoon crushed red pepper
• 1/4 cup grated Parmigiano-Reggiano cheese, plus more for serving
• Finely grated zest of 1 lemon
• 1 pound spaghetti
• Salt and freshly ground black pepper
• Toasted Breadcrumbs, for serving