Serves2 (serves 4 as a side dish) 
                    
                
                
                    
                        
                            - Active Time:30 min
- Start to Finish:30 min
 
            
            
                
                
                
    
      
          
          
          
              
              
              
          
          
          
          
          
              
              
              November 1999
            
          
          
      
  
                
                
            
            
            
                 These mushrooms go well with the creamy Parmesan polenta, making a fine vegetarian meal. 
            
            
            
            
            
                
                    
                    
                    
                        
                            
                            
                            
                                
                                    
                                        - 
                                            3
                                            tablespoons
                                            olive oil
                                            
                                        
- 
                                            1
                                            cup
                                            coarse fresh bread crumbs
                                            
                                        
- 
                                            1
                                            
                                            medium onion, finely chopped
                                            
                                        
- 
                                            1
                                            tablespoon
                                            minced garlic
                                            
                                        
- 
                                            4
                                            
                                            medium portabella mushrooms (3/4 lb), stems finely chopped
                                            
                                        
- 
                                            3
                                            
                                            canned plum tomatoes, chopped
                                            
                                        
- 
                                            1/2
                                            teaspoon
                                            chopped fresh sage
                                            
                                        
- 
                                            1/2
                                            cup
                                            dry white wine
                                            
                                        
 
                    
                 
            
            
            
            
            
            
            
            
                
                    
                    
                    
                        
                            
                                
                                
                                
                                    
                                        - 
                                            
                                            Heat 1 tablespoon oil in a large nonstick skillet over moderate heat until hot but not smoking and lightly brown bread crumbs, stirring occasionally. Transfer to a large bowl. 
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                                            Heat 1 tablespoon oil in skillet over moderately high heat until hot but not smoking and sauté onion, stirring, until tender. Add garlic and sauté, stirring, 1 minute. Add chopped mushroom stems and salt and pepper to taste and sauté, stirring, until tender, about 3 minutes. Add tomatoes, sage, and 1/4 cup wine and cook, stirring, until almost all of liquid is evaporated. Set aside half of bread crumbs and stir mushroom mixture into remaining bread crumbs. 
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                                            Heat remaining tablespoon oil over moderately low heat until hot but not smoking and cook mushroom caps, gill sides down, covered, 5 minutes. Turn mushroom caps over and add remaining 1/4 cup wine and salt and pepper to taste. Cook, covered, until just tender but still juicy and mound filling in caps. Heat mushrooms until hot, about 3 minutes. 
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                                            Serve sprinkled with remaining bread crumbs.