Grilled Pork Tenderloin with Cabbage Salad

Name: Grilled Pork Tenderloin with Cabbage Salad
Ingredients: 1 pork tenderloin (about 1 1/4 pounds); Kosher salt and freshly ground pepper; 1 tablespoon ground fennel seed; 2 cloves garlic, minced; 1 teaspoon finely grated lemon zest, plus 1/4 cup lemon juice; 1/2 teaspoon red pepper flakes; 1/4 cup plus 2 tablespoons extra-virgin olive oil; 1/2 head savoy cabbage, leaves separated and cut into 2-inch pieces; 1/2 cup chopped fresh parsley; 1/3 cup chopped walnuts; 1/4 cup grated Parmesan cheese