Prepare the Chops: Lightly season the pork or veal chops on both sides with kosher salt and freshly ground black pepper. Set aside while preparing the skillet.
Cook the Pancetta: Heat the olive oil in a large skillet over medium-high heat until it begins to shimmer. Add the pancetta slices and cook for about 3 minutes, turning occasionally, until they are crispy and browned evenly. Transfer the cooked pancetta to a plate lined with paper towels to drain.
Sear the Chops: In the same skillet, carefully place the chops and sear them without moving for 2 to 3 minutes, or until the underside develops a deep golden crust. Flip the chops and sear the other side for an additional 2 to 3 minutes. Once both sides are golden, transfer the chops to the plate with the pancetta.
Cook the Vegetables: Lower the heat to medium and melt the butter in the skillet. Add the scallions and cook them for about 5 minutes, stirring occasionally, until they soften and turn golden brown. Pour in the chicken stock or water to deglaze the skillet, scraping up any browned bits from the bottom of the pan. Toss in the sliced sugar snap peas (or shelled peas) and stir gently to coat them in the pan juices.
Braise the Chops: Return the pork or veal chops to the skillet, nestling them on top of the peas and scallions. Cover the skillet with a lid and let everything simmer over low heat for 7 to 10 minutes, or until the chops are fully cooked but still juicy.
Finish and Serve: Remove the lid and squeeze a bit of fresh lemon juice over the entire dish to enhance the flavors. Garnish the top with the crispy pancetta and a sprinkle of freshly chopped chives. Serve immediately while warm.