Salisbury Steak With Mushrooms Recipe | Say Mmm

Ingredients

• 1 pound ground beef
• 1 large egg, lightly beaten
• 1/4 onion, finely chopped (about 1/3 cup)
• 7 saltine crackers, finely crushed (about 1/4 cup)
• 1 teaspoon minced fresh sage
• Kosher salt and freshly ground pepper
• 3 tablespoons unsalted butter
• 8 ounces sliced mixed mushrooms
• 2 teaspoons Worcestershire sauce
• 3 tablespoons all-purpose flour
• 1 to 2 tablespoons chopped fresh parsley
• Buttered egg noodles, for serving (optional)