*Ingredients +For Salisbury steaks: °⅓ cup breadcrumbs °1 egg °1 small yellow onion grated with the juice produced °1 tsp kosher salt °½ tsp black pepper °1 lb lean ground beef (e.g., 90/10 minced sirloin) °1 tablespoon extra virgin olive oil +For the mushroom sauce: °2 tablespoons butter °8 oz sliced mushrooms (preferably Baby Bella) […]