Heat olive oil in large frying pan. Add onions and cook on medium heat until onions are soft but not brown. Add garlic, cumin seeds, Robertsons Spice for Mince, chilli powder and cumin and stir well for 2 minutes. Turn the heat up and add the minced beef.
Cook for 3-5 minutes until the mince is brown. Add the Knorr Beef Stock Pot, tomato puree, chopped tomatoes and oregano. Bring to the boil and then simmer gently for 5-10 minutes.
Meanwhile, cook the hot dog sausages as specified on the packaging.
Add the sausages to each bun and top with generous amounts of the chilli beef mince sauce.