Grilled Greek Potato Salad

Ingredients

• 3 pounds small red potatoes, halved
• 2 tablespoons olive oil
• 1/2 teaspoon salt
• 1/4 teaspoon pepper
• 1 large sweet yellow pepper, chopped
• 1 large sweet red pepper, chopped
• 1 medium red onion, halved and sliced
• 1 medium cucumber, chopped
• 1-1/4 cups grape tomatoes, halved
• 1/2 pound fresh mozzarella cheese, cubed
• 3/4 cup Greek vinaigrette
• 1/2 cup halved Greek olives
• 1 can (2-1/4 ounces) sliced ripe olives, drained
• 2 tablespoons minced fresh oregano or 1 teaspoon dried oregano