Step 1

Preheat oven to 350 degrees.

Step 2

Drain juice from the cans of pineapple into a bowl.

Step 3

Reserve juice and place pineapple in a 13 x 9 inch baking dish.

Step 4

In a saucepan over medium heat, mix 1 cup of the pineapple juice with sugar until it melts.

Step 5

Mix cornstarch with water and add to the saucepan. Whisk until thickened.

Step 6

Pour juice mixture over pineapple in the baking dish.

Step 7

Grate cheese and sprinkle 1 cup of it over pineapple.

Step 8

Crush crackers by putting them in a plastic bag and hitting with the back of a spoon. Mix with melted butter and sprinkle over casserole.

Step 9

Sprinkle the rest of the cheese over the cracker crumbs.

Step 10

Bake casserole at 350 degrees for 30 minutes until golden brown and bubbly.