In a saucepan, add cassava, MAGGI Garlic Onion Cubes and 4 cups of water. Bring to a boil and cook for 15 minutes or until cassava is soft.
In another saucepan, add oil and margarine, heat until margarine melts. Add garlic, onion, pimento, chive, celery, chandon beni, tomatoes and carrots. Cook for 3 minutes then add flaked saltfish and incorporate well. Set aside.
In a medium bowl, place drained cassava and using a potato masher, mash cassava. Add butter and Carnation Full Cream Evaporated Milk. Continue to mash cassava until mixture is smooth.
Spray casserole dish with cooking spray, Spread saltfish mixture evenly into dish. Spread cassava evenly on to saltfish. Sprinkle cheese on top.
Place in a preheated 375 degrees F (190 degrees C) oven. Bake for 20 minutes.