Trim the head of broccoli into large spears. Toss the broccoli with olive oil, nutritional yeast, garlic powder, salt, and pepper to evenly coat.
Pre-heat your grill to medium. Add the broccoli and red onion slices to the grill. Close the lid and grill for 15 to 20 minutes, turning once to evenly cook both sides. The onion typically needs more time than the broccoli so you may need to start it first or pull the broccoli off the grill earlier so it doesn't burn.
After you have grilled your veggies you can cut them in to smaller bit size chunks. Then set aside to layer on top of your pizza.
Brush the crusts with a little olive oil, then top with 1/2 cup pizza sauce and 1 cup of vegan cheese shreds. Add your pizza toppings (First pizza grilled broccoli and onion; Second pizza pineapple chutney, sun dried tomato, black olives). Then bake according to the crust packaging 8 to 12 minutes.
Here is the link for the Pineapple Chutney recipe. Crushed pineapple will work but this easy to make chutney adds another layer of flavor!