Creamy Cauliflower Alfredo

Name: Creamy Cauliflower Alfredo
Ingredients: 2 cups cauliflower florets, about 8-ounces; 1 cup low-sodium chicken broth; 8 ounces whole grain fettuccine pasta; 1 teaspoon extra-virgin olive oil; 2 cloves garlic, minced; 1/2 cup low-fat evaporated milk; Kosher salt and freshly ground pepper; 3/4 cup frozen petite peas, thawed, (4 ounces); 1/4 cup grated Parmesan cheese; 1 tablespoon unsalted butter; 1 tablespoon chopped fresh parsley, plus extra for garnish; 1 1/2 teaspoons finely grated lemon zest