Shepherd's Pie in a Half-Roasted Squash Recipe | Food Network

Ingredients

• 3 tablespoons olive or canola oil
• 1 pound ground lamb
• 5 large russet potatoes
• 8 tablespoons butter, melted
• 1 tablespoon brown sugar
• 1 medium red onion, diced
• 2 (16-ounce) cans corn, or the kernels from 6 fresh ears
• 1 large butternut squash
• 4 cups sour cream
• 3 large acorn squash
• Salt and freshly ground black pepper
• Brown gravy, for serving