Pre-heat oven to 400 degrees and line a baking sheet with foil. Spray foil with cooking spray and set aside.
In a medium bowl, toss together cauliflower florets with olive oil, salt and pepper. Spread in an even layer on baking sheet and roast until caramelized, about 20-25 minutes.
While cauliflower is roasting, melt butter in a small sauce pan over medium heat. Remove from heat and whisk in hot sauce; set aside.
Add cooked cauliflower back to the medium bowl and drizzle with the buffalo sauce. Toss until evenly coated and serve on a platter with blue cheese dressing and celery sticks.
Notes
Serving Size: 1 1/2 cups cauliflower and 2 tablespoons blue cheese dressing