In a large bowl, mix together the ground beef, breadcrumbs, milk, steak seasoning, half of the Worcestershire sauce, and season with salt and pepper. Form the meat into an evenly elongated loaf on a parchment paper-lined baking sheet.
Cook the meatloaf in the oven for 30-40 minutes or to an internal temperature of 155°F using a thermometer. Remove from the oven and let meatloaf sit 2-3 minutes before slicing.
Heat the oil in a non-stick pan over medium heat. Sauté the mushrooms until they become soft, add the garlic and sauté for 2 minutes. Stir in the ketchup, remaining Worcestershire sauce, and broth. Simmer until it turns into a thick smooth consistency.
Spoon the sauce over the meatloaf and serve with dinner rolls.
Notes
Pro Tip: Make a bigger quantity and freeze what's left or utilize it throughout the week. Freeze or use within 5 days.