Here is another PB & J alternative for the brown bag lunch. This one is protein packed and light on calories.
1-2 bags of Frozen cooked peeled shrimp. (mine had tails on)
1 bottle cocktail sauce
Pour cocktail sauce into souffle cups and top with lids.
Add shrimp, napkin and cocktail sauce to bag. Keep in freezer or refrigerator if you have an insulated lunch box. Toss frozen ones into brown bag and they will thaw by lunch! You might want to test this out for yourself. Depending on what time lunch is, yours may or may not thaw completely and you may want to keep yours in the refrigerator.