Serves4 (main course) 
                    
                
                
                    
                        
                            - Active time:25 min
 
                        
                            - Start to finish:30 min
 
                        
                    
                
             
            
                
                    
                    CHRIS SCHLESINGER AND JOHN WILLOUGHBY
                
            
            
                
                
                
    
      
          
          
          
              
              
              
          
          
          
          
          
              
              
              June 2009
            
          
          
      
  
                
                
            
            
            
                Mushrooms in general are great for grilling, and portabellas—which not only have a wonderful, earthy flavor but are also large enough to be easy to handle on the grill—are perhaps the best of all.   
            
            
            
            
            
                
                    
                    
                    
                        
                            
                            
                            
                                
                                    
                                        - 
                                            1 1/4
                                            lb
                                            portabella mushrooms (about 6), stemmed 
                                            
                                        
 
                                    
                                        - 
                                            3
                                            tablespoons
                                            vegetable oil
                                            
                                        
 
                                    
                                        - 
                                            3/4
                                            lb
                                            penne
                                            
                                        
 
                                    
                                        - 
                                            3/4
                                            cup
                                            grated Pecorino Romano
                                            
                                        
 
                                    
                                        - 
                                            1
                                            tablespoon
                                            chopped marjoram or oregano 
                                            
                                        
 
                                    
                                        - 
                                            1/4
                                            cup
                                            extra-virgin olive oil
                                            
                                        
 
                                    
                                
                            
                         
                    
                 
            
            
            
            
            
            
            
            
                
                    
                    
                    
                        
                            
                                
                                
                                
                                    
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Prepare grill for direct-heat cooking over hot charcoal (high heat for gas); see “
Grilling Procedure.”
 
                                         
                                    
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Brush mushroom caps with vegetable oil and season with 1/4 tsp each of salt and pepper. 
                                         
                                    
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Oil grill rack, then grill mushrooms, stemmed sides down, covered only if using a gas grill, 5 minutes. Turn mushrooms over and grill until tender, about 3 minutes more. Cool slightly and slice.
                                         
                                    
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Cook penne in a pasta pot of well-salted boiling water until al dente. Reserve 3 Tbsp cooking water, then drain pasta.
                                         
                                    
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Toss pasta with reserved cooking water, mushrooms, Pecorino, marjoram, olive oil, and salt and pepper to taste. 
                                         
                                    
                                
                             
                        
                    
                    Cooks’ notes: - Portabellas can be grilled in batches in a lightly oiled hot grill pan over medium-high heat, turning once, until tender, about 10 minutes per batch. 
 -  Portabellas can be grilled 1 day ahead and chilled. Bring to room temperature before using.