01 - 
                In a skillet over medium heat, cook the ground beef until fully browned. Drain the excess fat.
              
              
              
                02 - 
                Stir in taco seasoning and water, simmer over medium heat for 5 minutes, until mixture thickens. Remove from heat and let cool slightly.
              
              
              
                03 - 
                In a large mixing bowl, combine the cooked beef, shredded cheddar cheese, nacho cheese sauce, black beans, and corn if using. Mix thoroughly.
              
              
              
                04 - 
                Place an egg roll wrapper on a clean work surface with a corner pointing toward you.
              
              
              
                05 - 
                Spoon 2 to 3 tablespoons of filling onto the center of the wrapper. Fold the bottom corner up over the filling, then fold in both sides and roll tightly. Seal the edge with a small amount of water.
              
              
              
                06 - 
                Continue assembling the remaining egg rolls using the filling and wrappers.
              
              
              
                07 - 
                Pour about 1 inch of vegetable oil into a deep skillet and heat to 350°F over medium-high heat.
              
              
              
                08 - 
                Working in batches, fry 3 to 4 egg rolls at a time for 2 to 3 minutes per side, or until golden and crisp. Transfer to a plate lined with paper towels to drain excess oil.
              
              
              
                09 - 
                Serve hot with sour cream, salsa, or guacamole on the side for dipping.