You can serve it on the side of the main dish (but on the same plate) or lay it on your plate and add the main dish on top.
If you serve it as a main dish, you can add tomato sauce on top.
Notes
When mixing, you can add a tablespoon of nutritional yeast.
Check how light you want your vegan purée to be, by adding a little almond milk, stirring and tasting.
If you want to give a more beautiful yellow color, add ¼ tsp turmeric in the pot you boil the potatoes.
If you want to make variations of your purée, you can add boiled and mashed carrots or sweet potatoes. You can also add sautéed onions or leeks.
The whole nutmeg, when you grate it before adding it to your food, has a more intense aroma than the one already grated. Its aroma is much fresher and a little more intense.