The Burger-Burger sandwich was created in 1947—a hamburger on French bread, topped with a mustard blend, chopped onions and a secret sauce. The restaurant was for many years in Ocean Springs, and its relocation to Biloxi delighted locals who grew up eating the sandwiches. Open Monday-Friday for breakfast and lunch. $. Most major credit cards. 1039 Howard Ave., Biloxi. Phone 228-432-5183.