Many popular fast-food restaurants started with simple menus that gave customers just a few items to choose from.

Taco Bell's 1960s menu had five food options for 19 cents each, while Arby's only sold roast beef sandwiches and drinks when it opened in 1964.

Some featured items that no longer exist, such as McDonald's potato chips, which were replaced with french fries.

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Many of America's iconic fast-food chains have come a long way since they were founded decades ago — adding new foods and categories to their menus to adapt to a growing customer base.

A look at vintage menus from fast-food chains shows just how simple some of the restaurants' offerings used to be.

Wendy's had five menu items when it first opened in 1969. Customers could choose from hamburgers, french fries, chili, soft drinks, and its classic Frosty.

Likewise, when it became a franchised restaurant in 1955, McDonald's offered a simple selection, focusing on hamburgers and french fries. Now, the famed red-and-yellow eatery has a menu with long lists of sauces, breakfasts, desserts, and snacks.

From White Castle to Wendy's, here's what fast-food restaurant menus looked like in their early days.