Grilled Shrimp with Mango and Red Onion Relish

Ingredients

• 1 medium red onion, cut into 1/4-inch-thick slices
• Cooking spray
• 3 cups diced peeled mango
• 2 1/4 teaspoons salt, divided
• 2 cups chopped seeded tomato
• 1/3 cup chopped fresh cilantro
• 2 tablespoons cider vinegar
• 2 teaspoons sugar
• 1 teaspoon grated lime rind
• 2 minced serrano chiles
• 1 teaspoon dried oregano
• 1/4 teaspoon freshly ground black pepper
• 4 pounds extralarge shrimp, peeled and deveined
• 3 garlic cloves, minced

Preparation

1. Prepare grill.
2. Lightly coat onion slices with cooking spray. Place onion on grill rack coated with cooking spray; grill 4 minutes on each side. Cool and chop. Combine onion, mango, 1 teaspoon salt, and next 6 ingredients (through chiles) in a large bowl.
3. Combine oregano, remaining 1 1/4 teaspoons salt, pepper, shrimp, and garlic in a large bowl, and toss well. Thread shrimp onto skewers. Place skewers on grill rack coated with cooking spray; grill for 2 minutes on each side or until done.