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                                            Prep Time: 30 Minutes Cook Time: 0 Minutes  | 
                                            Ready In: 30 Minutes Servings: 4  | 
                                         
                                        
                                     
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                    I got this recipe from my mother. In summer, we both prepare this dish often with vegetables from our gardens. Ranch dressing is a tasty topping twist.JoNee Koehn, Buhl, Idaho Ingredients: 
                    
                        
                                                3/4 pound ground beef  |  
                                                1 medium onion, thinly sliced  |  
                                                1 medium zucchini, thinly sliced  |  
                                                1 can (4 ounces) mushroom stems and pieces, undrained  |  
                                                1/4 cup chopped celery  |  
                                                2 tablespoons chopped green pepper  |  
                                                1/4 teaspoon salt  |  
                                                4 corn tortillas (6 inches)  |  
                                                2 tablespoons vegetable oil  |  
                                                1 cup (4 ounces) shredded cheddar cheese  |  
                                                1 medium tomato, chopped  |  
                                                1/2 cup sour cream or ranch salad dressing  |  
                                                hot pepper sauce to taste  |  
                                                
                     
                    Directions: 
                    
                        
                            
                                1. In a skillet, cook beef over medium heat until no longer pink; drain. Add the onion, zucchini, mushrooms, celery, green pepper and salt. Simmer, uncovered, for 8-10 minutes or until vegetables are tender. Meanwhile, in another skillet, fry tortillas in oil; drain on paper towels. Place the tortillas on a greased baking sheet. Spoon meat mixture onto the center of each. Sprinkle with cheese. Bake at 350° for 30-5 minutes or until cheese is melted. Top with tomato, sour cream and hot pepper sauce. Yield: 4 tostadas.                              | 
                         
                         
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