Shepherd'S Pie

Ingredients

• FILLING
• 1 tablespoon vegetable oil
• 1 cup chopped onion (1/4-inch to 1/2-inch pieces)
• 1/2 cup chopped celery (1/4-inch to 1/2-inch cubes)
• 1/2 cup chopped carrot (1/4-inch to 1/2-inch pieces)
• 1 cup chopped rutabagas (1/4-inch to 1/2-inch cubes) or 1 cup turnip (1/4-inch to 1/2-inch cubes)
• 1 lb lean ground beef
• 1 teaspoon chopped garlic
• 1 pinch cayenne
• 2 teaspoons chopped fresh thyme (or 1 tsp dried)
• 1 tablespoon flour
• 1 1/2 cups beef broth
• 1 cup diced canned tomato with juice
• 1 tablespoon Worcestershire sauce
• 1 tablespoon soy sauce
• 1 teaspoon tomato paste
• 1 bay leaf
• TOPPING
• 1 1/2 lbs yukon gold potatoes
• 1/4 cup butter or 1/4 cup margarine
• 1/4 cup milk