Tuscan Grilled Zucchini & Summer Squash

INGREDIENTS

• 1 sprig oregano, chopped
• 3 summer squash, cut into 1 inch cubes
• 1/2 cup red wine vinegar
• 2 red onions
• 3 lemons
• sturdy skewers, soaked in hot water for an hour if wooden
• 2 zucchini, cut into 1 inch cubes
• 2 cups extra-virgin olive oil
• 5 garlic cloves, minced
• 4 sprigs rosemary, chopped
• 1/2 tablespoon crushed red chile flakes
• To Taste salt & pepper