Food i can take out of the country?

I'm going to a service trip in August and have selective eating disorder. I don't like a lot of the food made in that country like tomatoes and beans and such things. What are some good packaged items I can take with me that have nutritional value so I don't starve for two weeks. All this will be in a checked bag BTW. I also won't have access to a microwave an oven or a refrigerator.