In a bowl, combine ingredients for potatoes and toss until well coated. Place cooking rack on a parchment paper coverd baking sheet and spray cooking rack with cooking spray. Put potatoes on sheet in a single layer. Put into oven to cook for 25 minutes.
In a frying pan over medium high heat, add bacon pieces and cook until crispy. Remove to paper towel covered plate. Reserve bacon grease in pan (at least 2 tablespoons).
Season pork chops with listed seasonings and add them to bacon grease in frying pan. Cook for 7 minutes on each side and remove to rest for at least 5 minutes. Then chop into bite-sized pieces.
In a saucepan over medium heat, add butter and garlic powder. Once melted whisk in flour and cook for 2 minutes. Whisk in milk, ground mustard and paprika, cook for 3 minutes. Whisk in heavy cream and cook for 2 minutes. Whisk in cheese by the handful and cook another 2 minutes. Stir in jalapenos. Reduce heat to low and stir occasionally until ready to build nachos.
You can build nachos on individual plates or a family style platter. Start with potatoes, pour cheese sauce over and sprinkle with pork and bacon. Pour a little more cheese sauce over then top with scallions and jalapeno coins.