Hamburger steak usually contains only ground meat, salt and pepper. It is commonly served with a bun or bread.
Salisbury steak has more fillers like breadcrumbs, onion and eggs (as a binder). You can serve it with mashed potatoes or a side of veggies to make a meal.

What are the Ingredients in Bobby Flay Salisbury Steak
Ground Beef: This is the key ingredient in Salisbury steak. We recommend to use 80-90% lean beef, it is full of flavor and not too greasy.

Onion and garlic: We like to sauté onion and garlic before adding to meat for a milder texture. You can skip this step.
Panko breadcrumbs: We highly recommend to use panko breadcrumbs as they don’t make steaks dry. If you can’t get them or don’t have on hand, use regular bread crumbs.
Egg: It helps to bind the ground beef and other ingredients together. It also adds moisture and can help keep the Salisbury steaks tender.

Tomato sauce: We prefer to use marinara sauce instead of milk. It adds not only flavor but also moisture.
Mustard: Yellow mustard works best.
Worcestershire sauce: It helps to tenderize the meat, because it contains vinegar and adds amazing savory flavors.
Dried oregano: It has a slightly bitter and pungent taste, which complements the savory flavor of the beef.
Salt and pepper

How to make Bobby Flay Salisbury steak