In a medium saucepan, combine the rolled oats, almond milk, grated carrot, crushed pineapple, cinnamon, nutmeg, salt, maple syrup, and vanilla extract.
Bring the mixture to a gentle boil over medium heat, stirring frequently.
Once boiling, reduce the heat to low and let it simmer for about 5-7 minutes, stirring often until the oats are creamy and tender. If you prefer a thinner consistency, feel free to add more milk.
Once cooked, remove the saucepan from heat and stir in optional chopped walnuts and raisins if using.
Serve the oatmeal hot in bowls, drizzling extra maple syrup on top for a sweet touch and sprinkling with a few additional walnuts if desired.