Grate the carrot and add it to a small pot along with the oats, flax seeds, chia seeds, psyllium husk and cinnamon. Cover with water or milk of your choice and stir to combine.
Cook over medium heat, stirring regularly, until the oats are cooked through and the porridge is thick and creamy. The psyllium husk will thicken it quickly so keep an eye on it and add a splash more liquid if needed.
Remove from the heat and stir in the lemon zest, orange zest and fresh grated ginger.
Transfer to a bowl and top with the crushed walnuts and pumpkin seeds. Finish with a generous drizzle of honey and a spoonful of butter. Serve immediately.