Preheat oven to 425 degrees F. Line a sheet pan with parchment paper.
Toss the onions, sweet potatoes and potatoes together on the pan lined with parchment paper. Drizzle the oil over the potato and onion mixture and sprinkle evenly with the one teaspoon of salt, smoked paprika and cayenne pepper. Toss gently to coat. Roast the potatoes in the oven for 20 minutes.
Meanwhile, whisk together the applesauce, steak sauce, honey, mustard and remaining teaspoon of salt together. Pour evenly over the pork chops being sure to coat both sides.
Remove the potatoes and onions from the oven. Gently push them to the edges of the pan so there is enough room in the center of the pan for the pork chops.
Place the pork chops in the center of the pan, topping each chop with more of the applesauce mixture.
Place the pan back in the oven and bake the chops for 10 minutes.
Increase the temperature to 500 degrees, rotate the pan and bake for 5 minutes more.
Remove the pan from the oven and check the temperature of each pork chop with an instant read digital thermometer. Continue to bake a few more minutes (if necessary) until the internal temperature of each chop reaches 145 degrees F. Do not over cook!
Allow the chops to rest for five minutes before serving.