Salisbury Steaks with Miso-Mushroom Gravy

Ingredients

• 1 lb Lean ground beef
• 1 large White Onion grated
• 2 tbsp Dijon mustard
• 1 1/2 cups Panko bread crumbs
• 1 tbsp Unsalted butter divided
• 1 large Egg lightly beaten
• 1/2 tsp Ground cinnamon
• 1/2 tsp Ground nutmeg
• 1/2 tsp Ground cayenne pepper
• 1 tsp Dried oregano
• 1 cup All purpose flour
• 1/4 tsp Salt
• 1 tsp Ground black pepper
• 1/4 cup Unsalted butter
• 1 tsp White miso paste
• 1/2 tbsp Dijon mustard
• 1 clove Garlic minced
• 1 lb button mushrooms sliced
• 2-3 cups Beef broth *see notes
• 1 tsp Instant coffee granules