Amanda and I have a favorite sandwich. It's not really even a sandwich, but more like some stuff, on toast. We named it the BLE. That doesn't stand for bacon, lettuce, and random-ingredient-that-starts-with-E. It stands for Best Lunch Ever. And it is. It's really easy to make, pretty affordable, and is so good that I could eat it for lunch every day. At least for a whole week.
First, you need to spread cream cheese on toast. Or on a bagel. The BLE is pretty flexible.
Second, mash up half an avocado, and spread that on top of the cream cheese. Then add salt and pepper. That's your basic BLE.
There are lots of variations though. Like adding a squeeze of fresh lemon to the avocado, maybe some tomato slices, maybe even some leafy lettuce and red onion. At that point, it starts turning into a veggie sandwich, but whatever. You can still call it a BLE.