In a large bowl mix ground beef with bread crumbs, eggs, and oregano.
Form ground beef into 1/3 pound patties.
In a large frying pan on high brown the patties on each side.
In a measuring cup mix the broth with beef/chicken flavor, cornstarch, Worcestershire sauce, and garlic with a whisk.
Pour broth mixture around beef, add in the onions and turn stove to medium.
Cook for 5 minutes, turn each beef patty over and cover with a lid.
Cook beef until it reaches 160° on a thermometer.
The sauce will have thickened.
If the sauce is thin cook for a minute on a bit higher heat with the lid off.
Add salt and pepper to taste.
Serve beef patties with gravy poured over the top.