I am a teacher also, and I bought a Bento Box. I usually pack leftovers from the night before since I can't ever eat the entire amount. It's a good way not to waste food! If I don't have leftovers, I make some chicken salad from canned chicken and light mayo, egg salad, or tuna. I also love turkey meatballs with a few spoons of marinara sauce. You can just buy a jar of the sauce and keep it in the refrigerator. The smaller containers are great for cottage cheese or fruit. I agree, they are pricey, but definitely worth it since I use it all the time!