I consider mashed potatoes to be a major food group, but had never thought of them as a fast-food burger topping. It makes a lot more sense than putting fries on a burger, though, and Carl’s Jr. is forging ahead with this beautiful idea in some test markets.

A Brand Eating reader spotted this vision of ‘taterness on a drive-thru menu in southern California. The idea of a potato-topped burger wasn’t beautiful enough by itself: the potatoes are garlic mashed potatoes, and the topping is in turn topped with onion straws and gravy. Well, of course, gravy. That’s a given.

There’s a variety of “mashers,” as they’re called. Your meat options include a regular old beef patty, a chicken patty, or the larger beef patty from the Six Dollar Burger. Inexplicably, this last option costs $5, while the basic burger costs $2.99. Upgrading your sandwich to a fresh-baked bun runs $6.99.

News: Carl’s Jr. Testing New Mashed Potato-Topped Burgers [Brand Eating]

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