• Substance Coffee Diner

  • (16)
    39
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  • Food-truck Food Truck
    Vegan
American
Delivery
Take-out
Breakfast

Food trailer, fully vegan since 2021. Menu includes items like breakfast sandwich with tofu scramble, pancakes, waffles with coconut whipped cream or side of fried seitan, vegan burger, fishless tuna melt sandwich, cashew cow ice cream, and almond milk shakes. Parked here as of Jun 2021 - see website for other locations. Open Mon-Fri 4:00pm-8:00pm, Sat-Sun 11:00am-8:00pm.


Venue map for Substance Coffee Diner
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16 Reviews

First Review by AstynQuander

SueCz

Points +24

Vegan
02 Jul 2024

Best Vegan Diner Food in Tucson

Substance has great sandwiches, we really love the Philly style mushroom cheese steak sandwich, and the spicy chick'n. Their Sonoran dog is hands down the best in town with all the best add-ons. They also have desserts and drinks. Use the Food Truck app for pickup, or delivery through DoorDash.

Pros: Sonoran dog is the best, Really good 100% vegan food made to order, Central location next to Screwbean Brewery

Cons: Wish they had seating!

mandamanda

Points +763

Vegan
10 Apr 2024

Good but a little fatty

Had the kale Caesar salad with grilled seitan and the hot dog. The salad was good, especially the sauce. The fried croutons on the salad however were very fatty which was sad. The hot dog was also good and she even gave us fries for free! Would come back!

ChrisVegan

Points +41

Vegan
12 Mar 2024

Great Hidden Gem!

The food truck is small and hidden in an alley near the side of a building, so I almost couldn’t find it, but I’m glad I did.

I had the Mushroom Philly Cheezesteak Sandwich and the Sonoran hot dog, and both were delicious! The vanilla shake was also tasty.

It’s definitely a must-stop for vegans in Tucson!

I recommend that you get the food to go. There are only two small stools for seating, and they only seem to be for show.

Paigecs

Points +621

Vegan
15 Feb 2024

One great sandwich

The guy in front of me in line had come back to rave about his sandwich, the TLT, so I said I’ll have what he’s having.

He wasn’t wrong!

Ginormous proportions: bring your appetite.

julietteverley

Points +62

Vegan
22 Jul 2023

A go to

Absolutely love the cheese steak I probably get it once a week for a work day lunch treat. Wait can be long around dinner time but they are SPEEDY for my work day lunch orders

LeahDardis

Points +402

Vegan
20 Jul 2023

Full of flavor

So much flavor!!! Fried pickles, spicy fricken things, and a vegan Sonoran dog makes a great meal. Located at Motosonora Brewery and they pair well with the beers.

AlexBerian

Points +59

Vegan
27 Jun 2023

Ducking incredible

The roast peace and the Philly "cheesesteak" are literally the best sandwiches I've had in my life.

Pros: Dang, Good, Sandwiches

ahimsa4ever

Points +237

Vegan
26 Feb 2023

So GOOD

Affordable and DELICIOUS. It is one of my favorite vegan spots in Tucson. ALL items on the menu are vegan. Yummy “chicken” sandwich, fried pickles, perfect fries, amazing salad-try it all, it’s all so good. Camper diner is parked at MotoSonora Brewery (dog friendly beer garden) that often has live music and very vibrant atmosphere. Love it when buinesses support each other.

kso369

Points +61

Vegan
28 Jul 2022

So good!!!

Everything we have tried has been really really good. We’re working our way thru the menu. My favorite is the TLT & fried pickles.

Monsoon74

Points +54

Vegan
31 May 2022

Dope foods

I have enjoyed everything I’ve ordered. Always 3rd party delivery which I know they can charge restaurants high fees so I feel bad. But also I’m lazy and it’s far.

Pros: Sonoran dog , Banana split , Spicy nugs

cjoutside

Points +133

Vegan
12 Apr 2022

Awesome Chicken Sandwich

Nicely seasoned. Even my non vegan husband has been fondly remembering the sandwich days after we ate it.

vivelaviv

Points +44

Vegan
04 Apr 2022

Delicious!

I had the Caesar salad with the tofu bacon (which is insanely good) and the spicy "chicken" sando. The Caesar salad was one of the best Caesar salads I've ever had, vegan or not! The sando was perfect, soft bun, super crispy chicken, perfect level of spice.

I'll be coming back here often!

Pros: Lots of vegan options, Delicious, Fast

Solarisparc

Points +52

Vegan
26 Sep 2021

Good vegan food truck

Nice little food truck catering to vegans.

Pros: All vegan, Sandwiches are amazing, Friendly staff

Cons: A little on the expensive size, Not a fan of the milk shake

savsmalls

Points +717

Vegan
23 Sep 2021

yum

cure food truck!!came here because cashew cow was closed for a shake and got a strawberry malt! i think a shake with that flavor wouldve been better but it was still really good, very thick. i also got a side of their cajun fries that were good, a little spicy but so filling since they were steak fries. small size i couldnt even finish. their homemade ranch was good too. love the aesthetic of this place, my food took 20 mins since there was only one guy working on a wednesday night so be patient! no outdoor seating

Pros: cashew cows homemade ice cream!!, very sweet worker, lots of optionss

Cons: no seating

LeahMueller

Points +99

Vegan
13 May 2020

Delicious and Hip!

This place rocks! Lots of great vegan options, including milkshakes and pie. Great prices, and a cool room to sit in while dining.

Pros: Lots of vegan options

AstynQuander

Points +35

Vegan
07 May 2020

Love this place!!!

Substance is amazing and caters to the vegan community in town. The substance burger is my favorite and is vegan by default. The burger sauce is awesome! I’ve also had the spicy frickin sandwhich and strawberry shake. Both were awesome!

Pros: Yummy food, Mainly vegan menu, Cute location

Cons: Can get pricy




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