Low calorie lunch suggestions?

So my doctor has recommended I drop to 1300 calories a day, maximum. I just looked at my typical meals, and the “outlier” seems to be lunch.

Currently it’s a peanut butter & jelly sandwich on two slices of wheat bread. That’s 480 calories, and I’d love to find something in the 200-calorie range?

Any good suggestions? I work from home, so I have a full kitchen available, and definitely willing to do some prep for something to eat all week.