Preheat oven to 350 degrees F and grease a 8×8 baking dish.
In a large mixing bowl, add celery, onions, red pepper, cheese, corn, greens beans, condensed soup, and sour cream. Mix well and season to taste.
Transfer the mixture to the prepared baking dish and sprinkle the crushed cracker over the top. Pour the melted butter on top of the dish and bake for 45 minutes.