In small saucepan over medium heat, place 2 cups (500 mL) cauliflower rice (reserving rest for another use) and almond milk. Bring to a simmer and stir in cinnamon, nutmeg, vanilla extract, and remaining 2 tsp (10 mL) maple syrup. Cover and cook, stirring often, for 6 minutes. Meanwhile, finely grate second apple. Stir shredded apple into cauliflower mixture and continue to cook, stirring often, until cauliflower is tender and liquid has been absorbed, about 5 minutes.