Preheat your oven to 400℉ and line a large rimmed baking sheet with parchment paper. The bigger your sheet pan the crispier the crust will be! I use a 15 in x 21 in baking sheet.
Combine the ground chicken, mozzarella, parmesan, garlic powder, onion powder and salt in a large bowl and mix until completely combined.
Press the chicken mixture evenly onto the parchment lined baking sheet until it is completely flat, even and spread out across the sheet.
Bake the chicken crust for 40-50 minutes (bake time may depend on your oven, so be sure to check on it and adjust as needed).
While the crust bakes, prepare your toppings. I mix together the Greek Yogurt Ranch with salad mix for a delicious and refreshing topping, but feel free to use whatever you like!
Note that if you intend to top the crust with something that needs oven time, like cheese for example, remove the crust 5 minutes before the end of the bake time, add the toppings and add it back to the oven to melt.
Remove the crust from the oven, top with salad (or toppings of choice) and cut into rectangles or squares. Enjoy!