1-First Step: Prep the oven and baking dish Preheat your oven to 350°F. Lightly grease a 3-quart baking dish so the casserole does not stick. This also helps the edges bake evenly and makes cleanup easier later.

2-Second Step: Mix the pineapple filling In a large bowl, combine the drained pineapple chunks, the reserved 2 tablespoons of juice, sugar, and flour. Stir until the pineapple is evenly coated. The flour will help the filling thicken as it bakes, while the reserved juice adds a little extra moisture and flavor. Take your time here so the sugar and flour are mixed through every piece. If you are using brown sugar, break up any clumps with your spoon before moving on.

3-Third Step: Add the cheese Stir in the shredded cheddar cheese until everything is well mixed. The cheese may look unusual at first, but that is part of what makes this dish so loved in Southern cooking. The cheese melts into the pineapple filling and gives the casserole its creamy, savory edge. Do not worry if the mixture looks a little odd before baking. Once it comes out of the oven, the flavors blend into something rich, warm, and very comforting.

4-Fourth Step: Transfer to the baking dish Spoon the pineapple mixture into your prepared baking dish and spread it out evenly. A flat surface helps the topping brown in a more even way. At this point, the dish is ready for the crunchy cracker layer.

5-Fifth Step: Make the buttery topping In a separate bowl, mix the crushed crackers, melted butter, cinnamon, and nutmeg. Stir until the mixture looks like wet sand. That texture matters because it helps the topping bake into a crisp, golden layer instead of drying out. If you want more texture, use buttery crackers with a little more crunch. If you prefer a sweeter finish, add a pinch more brown sugar to the topping. Just keep the balance in mind so the dish does not turn too sweet.

6-Sixth Step: Add the topping and bake Sprinkle the cracker mixture evenly over the pineapple layer. Place the casserole in the oven and bake for 25 to 30 minutes. You are looking for a golden brown top and a filling that is bubbling around the edges. If your oven runs hot, start checking at the 25-minute mark. A little bubbling is a good sign that the filling has thickened and the cheese has melted through.

7-Final Step: Rest and serve Remove the casserole from the oven and let it rest for 5 minutes before serving. This short wait helps the filling settle so it is easier to scoop. Serve warm as a side dish with ham, turkey, or your favorite holiday spread.