Preheat oven to 450. Toss cauliflower with olive oil and garlic powder. Bake for 15-20 minutes until brown/lightly charred. Remove from oven.
Meanwhile make the dip by combining the whipped cottage cheese, goat cheese, vinegar, green onion, and milk all in the food processor. Pulse to combine, and then season to taste.
Melt butter and combine with Frank's Red Hot sauce. Pour over the roasted cauliflower or if you like a more bold flavor, toss it all together.