Roast greek lemon turkey recipe

Ingredients

• 1 (15 to 20 pound) turkey
• 6 large garlic cloves, peeled and quartered lengthwise
• 1/2 cup crushed dried oregano
• 1 tablespoon salt (optional)
• 1 tablespoons freshly ground pepper
• 1/2 cup lemon juice
• 4 large onions
• 6 large potatoes
• 4 carrots