Vegan Night Market (copy)

Karl Poechlauer of Substance Diner prepares food during the Vegan Night Market hosted by Death Free Foodie and 大象APPFoodie on June 1, 2024.

There鈥檚 a reason why Zack Morris and the rest of the Bayside teens were always at The Max in "Saved by the Bell," or why Jerry, Elaine, George and Kramer in "Seinfeld" sat at Monk鈥檚 to discuss whatever ridiculous situation they had gotten themselves into.

Even in Pawnee, Indiana, Leslie Knope and the rest of the "Parks and Recreation" crew would visit JJ鈥檚 Diner often, where Leslie would order waffles topped with whipped cream and Ron Swanson ordered a dish that came with scrambled eggs, bacon, hashbrowns, chicken fried steak, sausages, ham, pancakes and waffles.

Why are all these places such staples in these beloved sitcoms? Easy, they are diners! No one can resist good diner food, not even the Pink Ladies or the T-Birds.

There鈥檚 a comforting feeling when you bite into a juicy burger, dipping your golden, crispy fries into your chocolate milkshake, topped with whipped cream and a singular maraschino cherry.

Diner food can鈥檛 help but put a smile on your face, making you feel like you鈥檝e stepped in a time machine and ended up on the set of "Happy Days."

Everyone should have the chance to enjoy delicious diner food and Karl Poechlauer is making that happen one fricken sandwich at a time.

Poechlauer is the man behind , a retro food truck that serves up vegan comfort food that鈥檚 so good you won鈥檛 even realize you're not eating meat.

About five years ago, Poechlauer, who has worked in all kinds of restaurants since he was in his 20s, decided it was time to start his own food truck. Wanting to go with a '50s aesthetic, he built his very own food truck out of a vintage camper. To go with the theme, he made sure his menu included all the diner classics you鈥檇 see at a burger joint back in the day.

鈥淚 didn't really see anybody else doing that at the time,鈥 Poechlauer said. 鈥淚t seemed like another way to differentiate it, having the retro style and the food to match that.鈥

As you head behind Screwbean Brewing, located at , you鈥檒l see the vintage 1961 camper decorated with string lights and a red-and-white striped tarp. Neon lights cover the trailer, along with a 1950s-esque diner sign and cherry-red bar stools.

When Substance Diner first opened, Poechlauer was a vegetarian and wanted to make sure his menu had all kinds of options for everyone to enjoy. Over time, he got busier and realized the menu was a little too big.

He ultimately decided to narrow things down and focus on vegan dishes. Breakfast sandwiches, classic diner burgers with Beyond Meat patties, fried pickles, Sonoran dogs and TLTs (tofu, lettuce and tomatoes) are just a few of the tasty items found at Substance Diner.

The spicy fricken sandwich is one of Substance Diner鈥檚 standout items.

A real standout on Poechlauer鈥檚 menu is his spicy fricken sandwich. To create his fake chicken, or fricken as he calls it, he uses seitan, a meat alternative made out of gluten. First, he makes the seitan dough and boils it in a broth.

Once the patties are boiled, it鈥檚 time to fry them. Like frying anything else, Poechlauer covers the patties in flour and breads them, using an egg replacer to make sure everything sticks together. They are then fried until golden brown.

Now it鈥檚 time to assemble the sandwich. Poechlauer toasts the buns on the flat top, then adds shredded lettuce, slices of organic tomatoes and pickles, topping it all off with vegan spicy mayonnaise.

One bite of the fricken sandwich and you won鈥檛 ever feel the need to go to Chick-Fil-A again. The seitan is perfectly crispy and mimics the texture of chicken; you truly can鈥檛 tell you're not eating meat. The crispy patty mixed with the fresh vegetables is already a top-notch combo, but it鈥檚 the spicy mayo that adds a flavorful kick, leaving your mouth buzzing.

The best part: it鈥檚 not greasy or heavy! You won鈥檛 feel weighed down after eating a fricken sandwich; it is an elevated version of a classic chicken sandwich.

You can鈥檛 have a chicken sandwich without a side of fries 鈥 it鈥檚 a crime! Thankfully, Substance Diner makes some of the best steak fries in Tucson. The thick-cut fries are the perfect combination of crispy and fluffy. You鈥檒l never have to worry about getting thin, soggy fries here.

鈥淎s a kid, I remember Denny's or places like that, they'd always have these really big, chunky fries, and that's why I call them diner fries,鈥 Poechlauer said.

You鈥檒l want to leave room for dessert so you can sip on a creamy vegan milkshake or malt. Vanilla, chocolate, strawberry, chocolate peanut butter, cookies-and-cream and Coca-Cola are all on the menu. Good luck trying to choose just one.

Once you try this hidden gem, you鈥檒l be gathering your friends and heading here all the time, just like your favorite sitcom cast.

For more information on their menu and their hours, check out Substance Diner's .听


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Jamie Donnelly is the food writer for #ThisIsTucson. Contact her via e-mail at jdonnelly@tucson.com