spent $19

on this from Amazon.

ChefLand 3-Compartment Microwave Safe Food Container
with Lid/Divided Plate/Bento Box/Lunch Tray with Cover, Black, 10-Pack

From the website on the description:

These 3 compartment food containers could be fitted into a cooler. And they are leak proof it matters very little that they are propped vertically inside. Upon retrieval, it is easy to ‘unlock’ the front lid. The portions are good sizes. One tray could hold 2 apples, 3 bananas, and a good handful of grapes. The lids raise up too, so you could have an over-extra scoop on top of your foods.

Another tray could hold a good sized salad with dressing and seeds/additions or 2-3 chicken breasts, 6 boiled egg halves, and 2-3 red potatoes. Holds up nicely in the dishwasher for easy cleaning.

These containers are great for making lunches for the week and popping in the freezer.