Mini Meatball Subs
One of my favorite meals from a sandwich is an excellent meatball sub. I am a happy camper, a simple combination of another favorite meal (spaghetti and meatballs) between some version of bread.
I usually use pre-made meatballs (store-bought or homemade) saved over from a pasta meal. My usual sauce of choice is marinara, but pesto tastes excellent too. Ciabatta rolls or any other hearty bread is the best vehicle of choice. Do not forget to dig out some of the bread from one half of the roll to make space for the real deal.