Start with a generic 1/3rd lb patty of ground beef, either frozen or fresh.
Normally I follow the advice from http://cooking.stackexchange.com/questions/14705/how-do-you-grill-a-perfect-burgerHow do you grill a perfect burger?, however, I want to make many. How can I cook and store the extra patties for lunch the next day or more? Given that at work, I only have a microwave to reheat the meaty goodness.
Step 1. Cook beef patty Step 2. ??? Step 3. Profit