1. In a small pot over low heat, bring the oats, nondairy milk, and water to a simmer.
2. Stir in the carrot, raisins, vanilla extract, cinnamon, allspice, and salt. Continue to simmer, stirring occasionally, until all the liquid is absorbed, 7–10 minutes.
3. Transfer to bowls, drizzle with maple syrup, and add the walnuts and coconut on top.