Here is some ideas:
Roll-Ups - 1. deli slices of your favorite meat - roast beef, turkey, chicken. Some fresh sliced cheese. Pack in ziploc baggies, @ lunch roll it up w/ the cheese on the outside. Add some lettuce, mayo, or even mustard if you want.
2. Deli slices spread w/ a bit of cream cheese and take a green onion top, place it on the meat and roll it up...mmmmm
Tuna - Either an oil & vinegar mix or a tuna salad. Use it on celery sticks.
Veggies & Dip - Fav veggies (use only ones that are on your plan..induction,ect.) and either a cream cheese dip or just your fav salad dressing.
Salads - This is something I take to work nearly every day (with a roll-up for snack) There are soooo many good salad recipes out there.
Eggs - Either egg salad (use celery sticks) or deviled eggs.
Olives, pickles,ect would also make a good snack.
There are tons of options out there, just use your imagination. You can combine some of these like I do. Mostly I take some type of salad (that way I know I got all my veggies in for the day) and either celery & cream cheese, and a roll-up for my snacks.
Hope this helps