Place cauliflower florets on a parchment-lined baking sheet, drizzle with olive oil & season with salt & pepper. Roast at 400 degrees until golden brown, 15-20 minutes.
In a food processor combine roasted cauliflower, beans, olive oil, 2 tablespoons of cheese, mustard, vinegar, cayenne and salt & pepper.
Coat a 9in pie pan with non-stick spray. Spread dip evenly into pan. Top with remaining 1 tablespoon of Parmesan. Bake at 350 for 15-20 minutes or until warm.
Remove from oven & add toppings of your choice.
Serve with celery sticks & crackers! SO YUMMY & fun!