30 Minutes or Less, Leftover-Friendly, Nut-Free, Plan Ahead
Mushrooms are one of those vegetables that people either love or hate. I grew up thinking I hated them. They were weird and slimy—and for some reason, they came from a can. As an adult, I discovered fresh mushrooms and they quickly became my one of my favorite veggies. In teaching cooking classes, I’ve found that self-professed mushroom haters don’t mind them when they’re chopped and smothered with a sauce. I think these sandwiches would get the mushroom haters’ seal of approval, but you can make them with thinly sliced seitan instead of mushrooms if you like.
First-Timer Tip: If you have a food processor with attachments, you can use the slicing blade to cut the mushrooms in just seconds. Or look for precut mushrooms at the grocery store, which will reduce your prep time to almost nothing.