Tuscan Pork Sheet-Pan Supper - Fill Your Plate

Ingredients

• 1/3 c. balsamic vinegar
• 5 garlic cloves, minced
• 1/3 c. plus 1/4 cup olive oil, plus more for the pans
• 4 tsp. dried oregano
• 2 tsp. kosher salt, plus more to taste
• 1 1/2 tsp. black pepper
• 2 pork tenderloins (each slightly over 1 pound)
• 6 sweet potatoes, each cut into 6 wedges
• 6 shallots, quartered
• Chopped fresh parsley, for topping