Of all the food trends to take off during the last few years, food trucks are perhaps the most ubiquitous. At this point, you'd be hard pressed to find a major U.S. city that doesn't have at least several roaming about.

But hipsters and foodies aren't the only ones with an interest in food trucks. Unconventional companies, many of them fast food chains, are hoping to cash in on food trucks' popularity -- even Campbell's recently looked to food trucks for inspiration in an attempt to revitalize its brand. But is this a sign that the trend has jumped the shark?

If you're unconvinced, consider this: Taco Bell, Chick-fil-A and even Rachael Ray's dog food line all have food trucks. Seriously.

Click through the below gallery for a look at a few questionable food trucks.

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  • Rachael Ray's Dog Food Truck

    Rachael Ray has a food truck, but don't expect to find any delish or yum-o human treats on the menu. It's actually a <a href="http://www.nytimes.com/2012/10/18/business/media/rachael-ray-promotes-nutrish-dog-food-with-a-truck.html?_r=0">food truck for <em>dogs</em></a> -- it hawks canine treats from the Food Network chef's line of dog food, Nutrish.

  • Walgreen's Food Truck

    Walgreen's really wants people to know that it sells fresh food -- which why it decided to roll out its <a href="http://eater.com/archives/2012/12/06/walgreens-is-unleashing-food-truck-tour-on-america.php">"Up Market: Fresh" food truck</a>, which has offered samples of juice, smoothies, frozen yogurt and coffee since it hit the road in November on a national tasting tour.

  • Oscar Mayer's Revamped Weinermobile

    Looks like the Weinermobile recently got a hipster makeover. The <a href="http://www.autoblog.com/2011/05/26/oscar-mayer-takes-on-food-truck-craze-with-new-wienermobile/">30-foot long vehicle made its debut in New York City</a> earlier this year alongside celebrity chef Tyler Florence. Guess he's a fan?

  • Taco Bell's Food Truck

    We're usually dubious of fast food chains trying to cash in on the food truck trend, but Taco Bell's doesn't actually sell tacos -- it <a href="https://twitter.com/TacoBellTruck">gives them out for free</a>.

  • Jack In The Box's "Munchie Mobile"

    Jack in the Box is really <a href="http://www.huffingtonpost.com/anneli-rufus/jack-in-the-box-food-truck-munchie-mobile_b_837599.html">playing up its appeal to stoner clientele with its "Munchie Mobile"</a> -- seriously, that's what it's called --which debuted in March in San Diego. The 34-foot truck is covered with silk-screen images of a jacked up "Jack" at the helm of a Roman-style chariot borne by a tiger and a bear. Seriously.

  • Sizzler's "ZZ Truck"

    <a href="http://blogs.laweekly.com/squidink/2011/09/sizzler_food_truck_rolls_out.php">Sizzler's food truck, called the "ZZ Truck,"</a> offers a totally different menu than its brick-and-mortar locations, which we imagine is an attempt to appeal to diners who wouldn't otherwise be caught dead inside one of its restaurants. The truck has been zipping around since late 2011.

  • Red Robin's "YummmMobile"

    The name of <a href="https://www.facebook.com/RedRobinYUMMMMobile">Red Robin's food truck, the "YummmMobile,"</a> really is spelled that way.

  • Johnny Rockets' Food Truck

    <a href="http://fastfood.ocregister.com/2009/07/02/big-socal-burger-joint-to-launch-mobile-food-truck/26295/">Johnny Rockets' first food truck debuted in July</a> at the Washington Redskins' training camp. (The organization's owner, RedZone Capital, also owns Johnny Rockets.) It's designed to serve up a shorter version of the chain's classic menu, including hamburgers, shakes, fries, hot dogs and chicken tenders.

  • Subway's Food Truck

    Does a sandwich chain with more than 20,000 locations in the U.S. need a stable of food trucks? <a href="http://articles.latimes.com/2010/sep/09/business/la-fi-food-trucks-20100909">Subway seems to think so.</a>

  • Applebee's Food Truck

    <a href="http://www.huffingtonpost.com/2011/08/05/applebees-food-truck_n_919533.html">Applebee's debuted its own food truck</a> in the summer of 2011, much to the chagrin of HuffPost editors.

  • Chick-fil-A's Food Truck

    <a href="http://dcist.com/2012/03/chick_fila_food_truck.php">Chick-fil-A caused a stir</a> when it unveiled a food truck in Washington, D.C. not long before it made <a href="http://www.huffingtonpost.com/2012/07/17/dan-cathy-chick-fil-a-president-anti-gay_n_1680984.html">national headlines for its management's anti-gay stance</a>.

  • Burger King's Food Truck

    Yes, Burger King has a food truck. It <a href="http://blogs.trb.com/features/consumer/shopping/blog/2012/05/burger_king_food_truck_stops_a.html">went on tour earlier this year</a>, hitting up 40 cities across the country. It looks like the trucks are off the road for now</a>, but we're keeping our eyes peeled.

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