I got this recipe from a co-worker, but I am pretty sure it is an old recipe from Southern Living. This is a great Christmas or Easter side dish.
1 (20 ounce) can pineapple chunks, drain and keep juice
3 tablespoons flour
1/4 cup sugar
1 cup grated cheddar cheese
4 tablespoons melted butter
1 cup crushed Ritz (or any buttery type) crackers
– Preheat oven to 350 degrees.
– In a 1 quart casserole dish combine, flour, sugar and 3 tablespoons of the pineapple juice.
– Add cheese and pineapple and stir. Mix cracker crumbs with melted butter.
– Cover casserole with crumbs.
– Bake 25 minutes or until heated through. Heat longer for larger amounts.
Delusions of Chefery 
We used to have a cheesy casserole like this at the Gift Horse in Gulf Shores…What great memories!
I will have to try it.