This coconut pineapple sheet cake is a delicious and easy dessert option. To make this cake, you will need flour, sugar, baking powder, salt, eggs, coconut milk, vegetable oil, vanilla extract, crushed pineapple, and shredded coconut. Mix the dry ingredients together, then add the wet ingredients and mix until smooth. Fold in the pineapple and coconut, then pour the batter into a greased sheet cake pan. Bake for 25-30 minutes, or until a toothpick inserted into the center comes out clean. Let the cake cool completely before serving. This cake is perfect for a potluck or family gathering.