1-Step 1: Heat the oven and prepare the dish Preheat your oven to 350 degrees Fahrenheit. Lightly coat a 3-quart baking dish with cooking spray so the casserole releases easily after baking. This small step helps with cleanup and keeps the edges from sticking.

2-Step 2: Mix the pineapple filling In a large bowl, combine the drained pineapple chunks, reserved 2 tablespoons of juice, sugar, and flour. Stir until the fruit is evenly coated and the mixture starts to look slightly thick. If you are using brown sugar, the filling will taste a little deeper and more caramel-like.

3-Step 3: Add the cheese Fold in the shredded cheddar cheese and stir gently until it is well distributed. The cheese melts into the fruit as the casserole bakes, giving the dish that sweet-savory flavor people remember. If you are making this for a mixed group, sharp cheddar works best because it stands up to the pineapple.

4-Step 4: Transfer to the baking dish Spoon the pineapple mixture into the prepared 3-quart baking dish and spread it out evenly. Try not to pack it down too tightly. A light layer helps the heat move through the casserole and keeps the texture soft and bubbly.

5-Step 5: Make the cracker topping In a separate bowl, combine the crushed crackers, melted butter, cinnamon, and nutmeg. Stir until the crumbs are evenly coated. The topping should look like wet sand, with every cracker piece lightly covered in butter and spice.

6-Step 6: Add the topping and bake Sprinkle the cracker mixture evenly over the pineapple filling. Place the dish in the oven and bake for 25 to 30 minutes, until the top is golden brown and the filling is bubbling around the edges. The kitchen will smell amazing while it bakes.

7-Step 7: Rest and serve Let the casserole rest for 5 minutes before serving. This short pause helps the filling settle a bit so it is easier to scoop. Serve warm as a side dish with ham or turkey, especially during holiday meals.