2Fry celery, onion, and garlic in hot butter. Discard garlic.
3Preheat oven to 350 F. In 10" by 6" baking dish or 1 1/2 quart casserole, combine rice, celery mixture, tomatoes, water, brown sugar, and salt. Gently stir in tuna.
4Bake casserole, uncovered for 25 minutes or until hot