Lunch is pretty consistent for us. I usually always pack a meat stick, cucumbers and a bag of Hilo chips (Amazon).  I change up the main course. Favorites are egg salad sandwiches, chicken salad, taco meat and bacon and bacon, ham and cheese subs. Click the pic and it will take you to the link for the main course!

Containers I use for packing lunch. Thermoses get boiled water inside for about 15 minutes, then I dry them out and add food. 

Amazon.com: Thermos Foogo Vacuum Insulated Stainless Steel 10-Ounce Food Jar, Charcoal/Teal (B3004TS2) : Home & Kitchen

Thermos for a cheeseburger

Picnic Sandwich Wrap Paper

Bentgo Lunch Container