Pre-heat the oven to 160°C/325°F. Spray a 13 by 9-inch baking dish with non-stick cooking spray and set aside.
Sieve crushed pineapple from juice and reserve juice (you should have a little over 3/4 cup drained).
Using a hand mixer cream together butter and sugar mixture until it’s fluffy and starting to look white, about 3-5 minutes.
Stir in the eggs, a one at a time,beating the mixture well between each one and adding a tablespoon of the flour with the last egg to prevent the batter from curdling.
Mix in flour ,baking soda, nutmeg, lemon zest, and vanilla extract into the batter,–until fully absorbed by the mixture. You may add some pineapple juice.
Next Stir in crushed pineapple. Stir well until everything is fully combined. Add more pineapple juice(I usually use about 1/2 cup or less) , scrape down the sides of the mixing bowl.
Pour batter into prepared baking dish and spread into an even layer.
Bake at 325 until a tester inserted into the center comes out clean, 30 – 35 minutes. Remove from the oven and let it cool completely before frosting .