• Preheat oven to 350 degrees.

To make the meat:

• In a large frying pan add ground
  beef and cook until brown.  Remove any excess fat using a spoon.  Add onion, thyme, crushed garlic, paprika,
  black pepper, tomato paste and salt and mix to combine.  Cook for about a minute or two then add beef
  stock.   Cook until beef is tender and
  liquid has reduced and thickened.  Stir
  in frozen vegetables and mix to combine.

To make the potatoes:

• Peel and cut potatoes into 2 inch
  pieces and add to a large pot.  Fill with enough water to cover the
  potatoes.   Add 3 cloves whole garlic and place on the stove over
  high heat and bring to a boil.   Cook until potato is tender.   
  Remove from heat and strain.
• Place potatoes in a large bowl with
  butter, heavy cream, sour cream, salt and black pepper and mash until
  smooth.  

To assemble the dish:

• Place ground beef mixture in a large
  casserole dish then cover with mashed potatoes.   Optional: sprinkle
  parmesan or cheddar cheese over the top then place into preheated
  oven.   Bake for 35-40 minutes or until brown and bubbling. 
  Cool for 15 minutes before serving.