White Castle introduces new Veggie Slider

White Castle isn't known for its healthy menu options, but it's looking to change that.

On Tuesday, the 400-store burger-chain introduced Veggie Sliders, a vegetarian version of its famous beef sliders.

White Castle, the restaurant that invented the 100-slider "crave crate," said it will offer the veggie patty for 99 cents each for a limited time.

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The product received "rave reviews" during a testing period in New York and New Jersey, the company said.

The new sliders won't be too much healthier than their beefy cousins, in terms of caloric intake. They range between 150 and 270 calories, depending on the customer's choice of sauce—honey mustard, ranch and sweet Thai.

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In contrast, original beef sliders range between 140 and 220 calories, depending on the toppings, which include jalapeno cheese and bacon, according to the company's website.

"We are committed to asking good questions, listening to our customers and keeping up with changing tastes by developing new menu items that keep our guests craving and give them more options to feed the whole family," said Jamie Richardson, White Castle vice president, in a statement.

The Ohio-based quick service chain said the sliders are made with Dr. Praeger's veggie patty and include carrots, zucchini, peas, spinach and broccoli.