Preheat the oven to 375°. Line a baking sheet with parchment paper.
To prepare the crust, stir all the ingredients together in a medium bowl
Use a spatula to spread the mixture out on the baking sheet in a circular shape until it's about ¼" thick. Bake it in the oven for 18-20 minutes, until the edges are slightly crispy.
While the crust bakes, prepare the topping by heating 1 tablespoon of olive oil at medium-heat in a pan. Add the leeks and garlic and saute for 10 minutes. Add a tablespoon of water and the apple slices and saute for 5 more minutes, until the apple are soft.
Remove crust from oven. Flip the parchment paper and crust over on the baking sheet. Gently pull baking sheet away from crust.
Sprinkle about ½ cup of the cheese over the crust. Layer the leek and apple mixture over the cheese, then sprinkle the rest of the cheese on top.
Return the pizza to the oven and bake until the cheese is melted (about 10 minutes).
Remove the pizza from the oven and sprinkle the coconut bacon, salt and pepper on top. Slice and serve!
Recipe by The Colorful Kitchen at https://thecolorfulkitchen.com/2017/03/20/chickpea-crust-pizza-leek-apple-coconut-bacon-vegan-gluten-free/