Preheat oven to 350°F (175°C).
Cover a pizza stone or small baking sheet with parchment paper.
Place riced cauliflower, chopped yellow onion, and minced garlic cloves into a food processor.
Pulse the ingredients until they form a crumbly mixture.
Transfer the mixture to a clean kitchen towel or cheesecloth and squeeze out as much moisture as possible.
In a medium bowl, combine the squeezed cauliflower mixture, almond meal, beaten eggs, salt, and pepper.
Mix until well combined.
Press the mixture onto the prepared baking sheet or pizza stone, forming a thin, even crust (about 1/4 inch thick).
Bake for 20-25 minutes, or until the crust is golden brown and firm.
Remove from oven and add your desired toppings.
Return to the oven and bake for another 5-10 minutes, or until the toppings are heated through and cheese is melted.