Preheat oven to 500 degrees. Line 2 rimmed baking sheets with parchment paper and spray lightly with cooking spray. Set aside.
Place kale, cauliflower and cherry tomatoes in a large bowl. Add salt and garlic powder. Drizzle with 1 Tbsp olive oil and toss to combine. Season with pepper to taste.
Divide mixture between the two prepared baking sheets, leaving space between the veggies to avoid steaming in the oven.
Bake uncovered 10 minutes then stir and bake an additional 8-10 minutes.
Sprinkle Parmesan cheese on top and bake another 2-3 minutes or until cheese is melted and cauliflower is tender. Enjoy!
Notes
We selected cherry tomatoes for this recipe, but the only significant difference between a cherry and grape tomato is its shape.