Ingredients
                
                10 oz. ground beef
2 sandwich rolls
3/4 cup milk
4 oz. cremini mushrooms
1 yellow onion
3/4 lb. russet potatoes
4 pepperoncini
3 tablespoons all purpose flour
2 oz. aged white cheddar cheese
             
      
            
                
                    
Instructions
                
                Preheat oven to 475
Wash and dry produce.  Cut potatoes lengthwise into 1 inch wedges.  Thinly slice mushrooms.  Peel, halve and thinly slice onion.  Grate the cheese.  Slice the rolls lengthwise, leaving them intact.  Thinly slice pepperoncini lengthwise.
Place potatoes on a sheet pan.  Drizzle with olive oil and season with seasoned salt and pepper.  Toss to coat.  Arrange in a single, even layer, skin side down.  Roast 26 to 28 minutes until browned and tender.  Remove from oven, leaving the oven on.
In a large pan, heat 2 tablespoons olive oil on medium high heat.  Add mushrooms and cook 4 - 6 minutes.  Add onion.  Season with salt and pepper.  Cook 5-7 minutes or until softened.
Add ground beef and cook 3-5 minutes.  Add 2 Tablespoons water and cook 1 minute or until water has cooked off.  Set aside in warm place.
In small saucepan, heat 2 tablespoons olive oil on medium high until hot.  Add flour and cook, whisking constantly, for 1-2 minutes or until golden and fragrant.  Slowly whisk in milk and 1/4 cup water, heat to boiling on high.  Reduce heat to low and simmer, whisking frequently, for 4-6 minutes.  Season with salt and pepper.  Add cheese and cook 1-2 minutes until smooth.  Remove from heat.
Place rolls in the oven, cut sides up, until crispy 2-4 minutes.  Assemble sandwiches with pepperoncinis, beef mix and cheese sauce on top.  Serve with potatoes and extra cheese sauce on the side.