The Best Broccoli Sandwich

I rarely bother making anything but the simplest sandwiches at home—grilled cheese, PB&J—but this broccoli gochujang sandwich has all the cheesy, crunchy, tangy satisfying elements you want from a sandwich, while coming together quite quickly, just in the time it takes to boil the water and then steam the broccoli.
It was at least partially inspired by both a broccoli rabe sandwich with mozzarella and the broccoli sandwich at NYC’s famed No. 7 Sub. Their garlic chips are amazing. I think I might have to start putting garlic chips on all my sandwiches.