By hand, blend together the ground pork, onion powder, garlic powder, cayenne pepper, ground white pepper, crushed red pepper, paprika, oregano, bread crumbs and egg yolk.
Form the meat mixture into 12 2-inch patties. Arrange them in a single layer on a plate, cover, and chill for at least 30 minutes, but up to 24 hours.
When you are ready to cook, prep and heat a large skillet, cast iron skillet or the grill over medium heat. Cook on each side for 5-7 minutes or until pork reaches an internal temperature of 145°F. Place a piece of cheese (about a scant 1-ounce) over each patty and let it melt for 1 minute.
Assemble sliders on slider rolls with one sausage patty a dollop of Dijon mustard, roasted red peppers, pickled red onion, and alfalfa sprouts.
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