Yes, you read it correctly – Shepherd’s Pie is a staple meal in our household and something I haven’t put together in a long while for efforting to cut down on carbs – but tonight, actually at 5 a.m. this morning I was craving Shepherd’s Pie  – except, I wanted to snaz up my recipe consisting of only simple ingredients (ground beef, corn, and mashed potatoes)  into something like this recipe. Ingredients  Filling 1/2 cup French green lentils 1 tablespoon extra-virgin olive oil 1/2 pound ground beef or lamb (I like using 15 to 20% fat) Kosher salt Freshly ground black pepper 8 ounces mushrooms, such as shitake, crimini, or button, sliced 1 medium yellow onion, finely chopped 2 medium carrots, finely chopped 1 large fennel bulb (stems and fronds included), finely chopped 2 tablespoons chopped thyme leaves 2 tablespoons tomato paste 2 tablespoons all-purpose flour 1/4 cup dry red wine, optional 2 cups low-sodium vegetable stock 1 cup fresh or frozen peas 1 tablespoon Worcestershire sauce Topping Kosher salt 1 1/2 pounds (about 4 to 5 medium) Yukon Gold potatoes, peeled and cut into 1-inch chunks 1 pound (about 2 to 3 medium) parsnips, peeled and cut into 1-inch chunks 1/4 cup unsalted butter 1/4 cup whole milk, …