Turkey Shepherd's Pie with Butternut Squash

Ingredients (17)

• + 1 butternut squash, halved lengthwise add to pantry
• + 1 tablespoon extra-virgin olive oil, divided add to pantry
• + salt and ground black pepper to taste add to pantry
• ✓ salt and ground black pepper to taste
• ✓ 1 sweet potatoes, diced
• + 1 medium onion add to pantry
• ✓ 1 clove garlic, chopped
• + 1 pound ground turkey, or more to taste add to pantry
• + ½ cup turkey gravy add to pantry
• + 1 teaspoon Worcestershire sauce add to pantry
• + ¼ teaspoon dried thyme, or to taste add to pantry
• + ¼ teaspoon dried oregano, or to taste add to pantry
• + 1 tablespoon butter add to pantry
• + 2 teaspoons milk, or to taste add to pantry
• + ½ cup frozen corn add to pantry
• + ½ cup frozen peas add to pantry
• + ¼ teaspoon chili powder, or to taste add to pantry