grilled greek orzo salad

Name: grilled greek orzo salad
Ingredients: for the salad:; 1 medium zucchini; 1 red bell pepper; 1/2 large red onion; 5 tablespoons olive oil, divided; sprinkle of kosher salt and grind of pepper; 1 cup orzo pasta; 1/2 cup kalamata olives, pitted and halved; 1 cup cherry or grape tomatoes (I used red and yellow grape tomatoes); 3-4 green onions, sliced; 1/4 cup parsley, chopped; 4 ounces feta cheese, diced; for the dressing:; zest and juice of one lemon; 1/4 cup olive oil; 2 teaspoons dijon mustard; 2 cloves garlic, minced; 3/4 teaspoon dried oregano; 1/2 teaspoon kosher salt; 1/4 teaspoon black pepper