Wordlab

The plan is to sell an assortment of sliders in this food truck i just need a really catchy name.

Sliders are little, so an ironic title might be clever. In other words…something “big.” Also, because one needs a large mouth (figuratively) to consume multiple sliders.
such as:
BigMouthBurger

Is there a standard quantity you would like to sell, like 6 or 12? Maybe work with that number.

Some other ideas:
Carni-Vortex
Fat Stax
Shorty’s Burger Bus (if the short bus reference wouldn’t offend anyone)

It would probably sell on threes…we will have your standard burger and then have one crabcake, lamb, chicken, meatball, and so on.

In threes*

although i do like the idea of a short bus as a food truck lol

Truck Tucks

Trucker’s Taste

Simple Sliders