Peel, wash and chop the potatoes into a saucepan over medium heat.
Add 600ml of water, salt and bring to a boil for 15 minutes.
Drizzle olive oil on a foil lined pan and place the fillet cassava fish on.
Season with salt and black pepper, then spread the garlic and basil paste on the fish.
Place the french beans and drizzle with olive oil.
Bake in a pre-heated oven at 160 degrees celsius for 15 minutes.
Heat milk and butter until it starts to boil and take off the heat.
Mash the potatoes, add the milk mixture, black pepper, salt and mash to mix evenly.
Mashed potato with basil baked fish ready to serve.