Shepherd's Pie

This is a good Shepherd's Pie that my husband really likes. It is a little different than the usual Shepherd's Pie, but just as good.
4 large potatoes, peeled and cubed
1 tablespoon butter
1 tablespoon finely chopped onion
1/4 cup shredded Cheddar cheese
salt and pepper to taste
5 carrots, chopped
1 tablespoon vegetable oil
1 onion, chopped
1 pound lean ground beef
2 tablespoons all-purpose flour
3 tablespoon ketchup
1 cup water

1 package brown gravy mix

1/4 cup Worcestershire sauce

Bring a large pot of salted water to a boil. Add potatoes and cook until tender but still firm, about 15 minutes. Drain and mash. Mix in butter, finely chopped onion and 1/4 cup shredded cheese. Season with salt and pepper to taste; set aside. (*or just make mashed potatoes the way you like them. These were a little to heavy for me so I added in some milk)

Bring a large pot of salted water to a boil. Add carrots and cook until tender but still firm, about 15 minutes. Drain, mash and set aside. Preheat oven to 375 degrees F (190 degrees C.) I just used frozen peas that I thawed and it was just as good. You could use any variety of frozen vegetables.

Heat oil in a large frying pan. Add onion and cook until clear. Add ground beef and cook until well browned. Pour off excess fat, then stir in flour and cook 1 minute. Add ketchup, water, Worcestershire, and gravy packet. Bring to a boil, reduce heat and simmer for 5 minutes.
Spread the ground beef in an even layer on the bottom of a 2 quart casserole dish. Next, spread a layer of mashed carrots. Top with the mashed potato mixture and sprinkle with remaining shredded cheese.

Bake in the preheated oven for 20 minutes, or until golden brown