Non-perishable (non-refrigerated) meals

Hello all!
My husband has a business trip to la next week and i am going with him (we live in nc so this is like another planet for me).
we will be there from tues- sunday. the hotel and flight is arranged, but we are on our own for most meals. i am afraid that we will end up spending a ton and would like to either bring our own in a checked bag on the plane, or mail it to ourselves at the hotel.

the only problem is that i am having trouble thinking of foods we can pack beyond crackers, chips, and pb & j!! do any of you have any cheap meal ideas that would keep well if there is no refrigerator in our room?
i thought about going to a grocery store after we arrive, but we are not getting a rental car and i hate to pay for a taxi to do that.
any other ideas on how to save money on food while traveling??
thanks so much!!
jenny

ps- i already have some “meal replacement bars” to take in my purse for the days we are traveling. but i don't think we can live off those all week. 😉