Supposedly, the first hamburgers in U.S. history were served in New Haven, Connecticut, at Louis' Lunch sandwich shop in 1895. Louis Lassen, the founder of Louis' Lunch, ran a small lunch wagon selling steak sandwiches to local factory workers. Because he didn't like to waste the excess beef from his daily lunch rush, he ground it up, grilled it, and served it between two slices of bread -- and America's first hamburger was created.
The small Crown Street luncheonette is still owned and operated by third and fourth generations of the Lassen family. Hamburgers are still the specialty of the house, where steak is ground fresh each day and hand-molded, slow-cooked, broiled vertically, and served between two slices of toast with your choice of only three 'acceptable' garnishes: cheese, tomato, and onion.
Want ketchup or mustard? Forget it. You will be told 'no' in no uncertain terms. This is the home of the greatest hamburger in the world, claim the owners, who are perhaps best known for allowing their customers to have a burger the Lassen way or not at all.