1For the Stuffing
Add the butter to saute pan. Add the leek and garlic and saute about 1 minute. Add the mushrooms. Cover and cook 10 minutes. Uncover and cook on high until liquid has evaporated. Add the parsley thyme salt and pepper. Stir to combine and set aside.
2For the meatloaf
Mix all the meatloaf ingredients together. Preheat oven 350 degrees. Transfer half the meat mixture into baking pan. Top with the mushroom stuffing. Top with the rest of the meatloaf mixture. Bake about 1 hour until done. Pouring off fat.
3While the meatloaf is cooking make the jus.
Place olive oil in pan. Add the onion and cook on medium low for 10 minutes. Add the sugar and cook another 10 minutes on low. Add the carrot, and celery and cook 5 more minutes. Stir in the tomato paste and cook 2 minutes. Add the red wine and cook until reduced by half. Add the beef stock, thyme, salt and pepper. Cook for 30 minutes and the strain and discard solids.
4Place the strained jus on stove and mix the cornstarch and water together. Stir into jus to thicken a bit.
Serve the meatloaf with the Jus.