Enjoy this new style Shepherd's Pie -- a flavorful ground beef filling topped with a vitamin rich mashed sweet potato topping. YUM!
Heat oil in large non-stick skillet over medium heat. Add garlic, onion, mushrooms and ground beef; cook, breaking up the ground beef the back of a wooden spoon for 5 to 8 minutes until beef is browned. Sprinkle with flour and quickly mix it in. Stir in thyme, rosemary, nutmeg, salt, pepper, tomato paste and Worcestershire sauce. Increase heat to medium-high and stir in pineapple juice. Bring to a boil, adding some water if the mixture is too thick. Simmer for 1 minute. Stir in frozen vegetables.
Spread beef mixture into an 8-inch square baking dish. Top with and even layer of Sweet Potato Topping. Sprinkle shredded cheese evenly on top of the pie. Bake in 350°F (190°C)oven for 30 to 35 minutes or until cheese is melted and a digital instant read thermometer insert into centre of casserole reads 160°F(71°C).
Sweet Potato Topping: Peel 2 medium sweet potatoes and cut into chunks. Simmer in salted boiling water for 15 to 20 minutes or until tender. Drain and mash. Stir in 1 egg yolk, 1/4 cup (50 mL) skim milk, 1/8 tsp (0.5 mL) EACH ground cinnamon and dried oregano leaves.
* Percent Daily Values are based on a 2,000 calorie diet. Your daily value may be higher or lower depending on your calorie needs.