Preheat oven to 350°F.
Grease a 9 x 13 baking dish.
Bring the water to a boil and prepare the grits according to the package directions.
Remove the grits from the heat.
Stir in the butter and American cheese until completely melted and smooth.
Add the garlic salt, onion salt, celery salt, seasoned salt, and Tabasco sauce.
Stir in the beaten eggs until fully incorporated.
Pour the mixture into the prepared baking dish.
Bake for 1 hour, or until the top is lightly golden.
Let stand for 5 to 10 minutes before serving.