PREHEAT oven to 400°F and line a baking sheet with parchment paper. Spread cauliflower, celery and red onion on baking sheet. Roast for 10 minutes. Remove from oven and cool to room temperature.
WHILE vegetables cook, coat pork chops in seasonings on both sides. Heat a medium skillet over medium heat and melt butter. Add pork chops to pan and cook 8 minutes each side.
IN a large mixing bowl, combine Greek yogurt, horseradish mustard and white vinegar. Stir to combine. Pour in roasted vegetables and herbs. Stir again. Finish with bacon bits. Serve alongside pork chops.