Greek Pasta Salad

Name: Greek Pasta Salad
Ingredients: 1/3 cup extra virgin olive oil; 1/2 teaspoon grated lemon zest; 1/4 cup fresh lemon juice; 1/2 cup (packed) fresh parsley leaves; 1/2 teaspoon dried oregano; 2 teaspoons Dijon mustard; Pinch ground cinnamon; Salt and freshly ground black pepper; 6 to 8 ounces fresh curly spinach, stemmed, washed, leaves torn into 1-inch pieces; 2 cups (measured uncooked) medium shells cooked, chilled and patted dry; 2 kirby cucumbers, washed, peeled, seeded and cut into half moons; 2 scallions, thinly sliced; 6 kalamata olives, pitted and halved; 1/2 cup feta cheese, crumbled or cut into dice; 2 plum tomatoes, seeded and cut into fine dice