Finely chop the onion and carrot.
Mix ground beef and ground pork to make a dough.
Add the chopped vegetables, dough, breadcrumbs, egg, salt, and pepper, and mix well.
Shape the mixture into round, flat patties.
Heat oil in a pan and cook the hamburg steaks.
When both sides are golden brown, cover and cook on low heat.
Once the hamburg steaks are fully cooked, top with sauce to finish.