Speedy Shepherd's Pie

Speedy Shepherd's Pie 1 lb. ground beef or turkey 1/2 cup chopped onion 1 pkg. (10 oz.) frozen mixed vegetables, thawed 1 jar (12 oz.) beef gravy 1 tsp. dried thyme leaves 2 cups (8 oz.) e Shredded Mild Cheddar Cheese, divided 2-1/2 cups (1-1/2 lbs.) refrigerated garlic mashed potatoes or leftover mashed potatoes Brown meat with onion in a large skillet. Pour off drippings. Add vegetables, gravy and thyme. Cook and stir 4 minutes or until heated through. Remove from heat; stir in 1 cup cheese. Spoon mixture into a 10-inch deep dish pie plate or quiche dish. Combine potatoes and 3/4 cup cheese; spread over meat mixture. Bake in preheated 375°F oven 25 minutes. Sprinkle remaining cheese over potatoes. Continue baking 5 minutes or until heated through and cheese has melted.