Look for low sodium and low sugar products. You can purchase cans of organically grown fruits and vegetables. In the event that you are evacuated and must go to an emergency shelter, it would be prudent to bring your emergency food kit along with you. Vegetarian diets are not the norm and in an emergency setting, you may or may not be able to find a variety of vegetarian foods unless you bring your own. These do tend to be expensive.
Some vegetarian items are available.
If you have a safe cooking source such as a wood or propane stove, solar cooker, outdoor grill, or a camping stove, you can prepare some simple hot foods. If you plan to use these foods in case of a disaster, you should include a selection of them in your emergency kit. Remember to have a safely stored supply of cooking fuel if necessary. Outdoor grills and camp stoves should only be used outdoors to insure proper ventilation. Make sure you have a can opener and scissors or a knife for cutting open packages.