Come on, we know everything we need to know about Lucas's taste in food, from the fact that he drank an entire can of cold clam chowder, and described it as "pretty good".
I am, unironically, of the belief that he would eat dirt if you put enough cheese and ranch dressing on it.
He already used a dirty stick that he picked up from the ground, to try to spoon the remnants of Isaac's soup into his mouth, so he's no doubt already ingested a decent amount of soil.
Edit: I love how in the pizza video, he mentions that he bought it using the $50 that he got "berating a lady's cats", as if he needs to explain that for the 15th time, and how the lady "thought it was perfect".... Lucas? Just because you have no long-term memory, doesn't mean the rest of us don't.
Edit 2: In the "No Mukbang" video, he shows a hamburger, with about two bites left of it, on the bed next to the salt and pepper chips, before panning over to the disgusting closet. So today, we know he ate at the very least, an entire pizza, a hamburger, which probably came with fries, the bag of sourbrite crawlers, and a bag of salt and pepper chips. He is literally a bottomless fucking hole.