Pineapple Casserole

2 large cans crushed pineapple (drained)
3/4 c sugar
1/2 cup graded sharp cheddar cheese(we like a little more)
5 Tbls flour
1 roll Ritz crackers (crushed)
1 stick margerine or butter

1. put pineapple in 8x8 pan
2. mix cheese, flour, and sugar together, sprinkle over pineapple
3. pour crushed Ritz on top
4. pour melted margarine over top
5. bake at 350 for 30-40 min until golden brown