Preheat the grill or oven to 350°F.

Lightly grease a 9x13-inch casserole dish and set aside.

In a large mixing bowl, combine the sugar and butter, and beat with an electric mixer until well blended.

Add the eggs and pineapple, mixing until fully incorporated.

Gently fold in the cubed bread, ensuring each piece is evenly coated.

Transfer the mixture to the prepared casserole dish and spread into an even layer.

Bake for 35-40 minutes, or until golden brown and set.

Allow to cool slightly before serving.