Hamburger Steaks

Ingredients

• 3 tbsp. bread crumbs
• 2 tbsp. butter
• 1 lb. ground beef
• Kosher salt
• 2 tbsp. extra-virgin olive oil
• Freshly ground black pepper
• 1 tsp. fresh thyme leaves
• 1 1/2 c. low-sodium beef broth
• 1 large egg
• 1 small yellow onion, thinly sliced
• 1 tsp. garlic powder
• 1 tsp. onion powder
• 1/2 tsp. paprika
• 8 oz. sliced baby bella mushrooms
• 2 tbsp. all-purpose flour
• 1 tsp. Worcestershire sauce