12 ingredients
                
                    
                    
                        1 eggplant, unpeeled (approx 1-1/4 lb) Eggplant raw
                    
                 
                
                
                    
                    
                        6 sprays, about 1/3 second each spray Vegetable cooking spray oil
                    
                 
                
                
                    
                    
                        1 tablespoon Olive or extra virgin olive oil
                    
                 
                
                
                    
                    
                        1 cup, chopped Onions raw
                    
                 
                
                
                    
                    
                        1/2 tsp Italian seasoning dried
                    
                 
                
                
                
                
                
                
                    
                    
                        3 cup, pieces or slices Mushrooms white raw
                    
                 
                
                
                
                
                    
                    
                        15 oz Tomato sauce canned no salt added
                    
                 
                
                
                    
                    
                        1 cup, shredded Mozzarella cheese part skim low moisture
                    
                 
                
                
                    
                    
                        1/4 cup Parmesan cheese grated
                    
                 
                
             
            
                14 steps
                
                    - Turn oven on to high broil.
 
                    
                    - Peel eggplant and slice very thin.  Cut horizontally so that the slices are circles.
 
                    
                    - Lightly spray eggplant with vegetable oil cooking spray.
 
                    
                    - Broil eggplant for about 4 minutes on each side or until browned but not burnt.  Remove from oven and set aside.  Turn broiler off!
 
                    
                    - Add extra virgin olive oil to a large nonstick skillet and set burner to medium heat.
 
                    
                    - Add onion, Italian seasoning, salt, black pepper, and mushrooms to pan and saute for 4-5 minutes or until onion and mushrooms are lightly browned.
 
                    
                    - Mince garlic then add to pan and saute for another 1 minute.
 
                    
                    - Spray vegetable oil cooking spray into a 1½ quart oven-safe baking dish.  You can check the bottom of your baking dish to find the quart size.
 
                    
                    - Preheat oven to 375F.
 
                    
                    - Next, layer the baking dish in this order:  
 + Half of the onion mixture and spread to cover the bottom of the baking dish.
 + Half of the eggplant slices.
 + Half of the tomato sauce.
 + Half of the shredded mozzarella cheese.
 + Remaining half of onion mixture.
 + Remaining half of eggplant slices.
 + Remaining half of tomato sauce. 
                    
                    - Cover baking dish and bake for 50 minutes.  You can cover with aluminum foil if your baking dish does not have an oven-safe cover.
 
                    
                    - Uncover and sprinkle with remaining mozzarella cheese along with Parmesan cheese.
 
                    
                    - Bake uncovered for another 10 minutes so that cheese melts.
 
                    
                    - Cool for 10-15 minutes then serve.
 
                    
                
                Tip:
Garnished with fresh basil leaves in recipe photo.