Heat a large skillet over medium heat. Add the pork, season with the ITALIAN blend, and stir to incorporate. Cook the meat for 5 minutes, stirring to break it up with a spatula as it cooks, then add the kale. Continue cooking for another 5 to 7 minutes, until the kale begins to wilt and the meat is cooked through. Remove the pork and kale from the skillet and set aside.
Melt the cooking fat in the skillet, still over medium heat, then add the potatoes and DINER blend, gently stirring to coat the potatoes with the fat and spices. Spread the potatoes into an even layer and cook for 2 to 4 minutes, until they start to brown. Stir midway through cooking so they don’t stick. If they do start to stick, add a little more cooking fat to the pan.
Return the meat and kale to the pan, then garnish with red pepper flakes, coarse sea salt, and chives, if desired.