First Step: Prepare the Ingredients
Finely chop the onion if using extra minced onion or garlic for mixing into the meat. Prepare all seasonings and binders like eggs and breadcrumbs to make the mixing process smooth and efficient.

Second Step: Mix the Meat
In a large bowl, crumble the ground beef. Add garlic powder, onion powder, salt, pepper, ground mustard, along with optional minced onion, grated garlic, eggs, and unseasoned breadcrumbs if you choose to include them for improved texture and binding. Gently blend the mixture using clean hands or a fork, taking care not to overwork the meat to maintain tenderness.

Third Step: Shape Patties
Divide the meat mixture into four equal portions (or six smaller patties if preferred). Form each portion into patties approximately ¾ to 1 inch thick. To prevent patties from puffing during cooking, press a small indentation into the center of each patty with your thumb.

Fourth Step: Sear the Patties
Heat a skillet or cast iron pan over medium-high heat and add 2 to 3 tablespoons of oil (olive, avocado, or vegetable oil) once hot. Place the patties into the skillet without moving for about 4 minutes until a dark golden-brown crust forms. Flip the patties and sear the other side for another 3 to 4 minutes until cooked through.

Fifth Step: Cook Onions and Create Gravy
Remove the cooked patties and place them on paper towels to drain excess grease. Leave about 2 tablespoons of fat in the pan, then add the thinly sliced onions. Cook over medium heat, stirring occasionally, until the onions become translucent and golden, roughly 5 to 8 minutes. For additional richness, continue cooking on low for another 10 minutes if desired.

Final Step: Form the Sauce and Simmer
Stir in the French onion soup (undiluted), brown gravy mix, and water into the pan with onions. Bring the mixture to a boil, then reduce heat to simmer. Add Worcestershire sauce along with optional flavor enhancers like Tabasco or a splash of red wine. Return the hamburger steaks to the skillet and simmer gently for 5 to 6 minutes to meld flavors and thoroughly cook the patties. Just before serving, stir in 1 tablespoon unsalted butter for a silkier sauce.