Soak lentils in hot water (kettle) for 30 minutes, then wring out and rinse.
Peel the carrots into thin strips and cook over low heat in a pot for 3 minutes in 2 spoonfuls of olive oil.
Add the lentils, plant milk, spices (cinnamon and nutmeg) and dry grapes.
Cook over low-medium heat for about 20 minutes, stirring occasionally.
Add the maple syrup and stir. Leave to cook for a further 5 minutes. The mixture should become a little compact.
Serve warm in a bowl, topped with pineapple and crushed walnuts.