Can we start with the stupid name? Because it’s stupid. A restaurant name should not have a question mark. That makes The Monster nervous. ???
That being said, the make your own “wich” does work for The Monster. It’s an ultra-casual sandwich shop where you can, a la The Counter, pick your own poison. Want beef, chicken, ham or pork, seafood or turkey. Start there. Pick your bread. Pick a bowl. Shower it with cheese. Smother it with sauces. Veggies, oils and spices, do it up.