Repair all fragments in the passage below. Make corrections clearly..

In 1900, Louis Lassen served the immigrants’ recipe to his lunch wagon customers. Inserting the meat patty inside two pieces of bread. By 1904 a cook was hastily slapping beef patties between two buns. For the crowds at the St. Louis Fair. Soon people were adding condiments. Such as ketchup, mustard, and relish. The hamburger was quickly becoming a familiar American dish.

In 1900, Louis Lassen served the immigrants’ recipe to his lunch wagon customers, inserting the meat patty inside two pieces of bread. By 1904, a cook was hastily slapping beef patties between two buns for the crowds at the St. Louis Fair. Soon, people were adding condiments such as ketchup, mustard, and relish. The hamburger was quickly becoming a familiar American dish.

In 1900, Louis Lassen served the immigrants' recipe to his lunch wagon customers by inserting the meat patty inside two pieces of bread. By 1904, a cook was hastily slapping beef patties between two buns for the crowds at the St. Louis Fair. Soon, people were adding condiments such as ketchup, mustard, and relish. The hamburger was quickly becoming a familiar American dish.