Steam broccoli lightly by placing it in a large bowl with a couple of tablespoons of water. Microwave for about 4 minutes. OR you can steam with you instant pot for about 2 minutes. The broccoli does not need to have cooked all of the way through.
Place broccoli on a baking sheet that has been lined with either parchment paper or foil. Bunch up the broccoli close together. This way the cheese will stay on the broccoli and not the pan.
Season broccoli with salt and garlic powder.
Bake for about 15 minutes or until the cheese melts.