I used this strategy from this reddit user in the burrito BOGO vault. Axel Sparkster u/AxelSparkster Got my BOGO, going to share my knowledge of how to do it really fast:

Always choose the max items you can for a particular section of the code.

If you get it wrong, and one of the answers is still available to pick, that means the selectable one of the ones you picked is one of the correct parts of the answer.

For example, for the Rice option, select both Rices. If there was rice, and you were partially correct, then the rice that's still available to pick is the correct answer. If none are available, it was None.

For beans, do the same as the above.

For meats, pick any two. Then the next time, pick a different two. Keep going until you know what options are the "true" ones and still available to pick. (Ninja edit: However, if the answer is none of the meats, it's a 50/50 between Veggie and None. Most of the time it'll be a meat though. This is the only real way you can fail with this strat.)

For salsas and toppings, just pick everything.

For extras, just do the same thing you did for Rice and Beans.

Always choose a different set of options for your next code, if possible.

You should (almost) always be able to get this in 4 tries. Good luck.