Using med. heat, saute okra and onion in small amount of bacon drippings until crisp-tender. Add chopped tomato; stir, cooking, about 5 mins. Sprinkle on crushed crackers. Blend lightly.
Cook about 5 mins. Reduce heat. Break egg onto the mixture. Blend lightly until egg begins to congeal. Shape into a flat mound. Sprinkle grated cheese on top and slip under broiler until cheese melts.