Remove the trap underneath the disposal with a wrench. Unscrew the pipe fittings and take out the trap.
Turn off the power to the disposal at the circuit before you begin repairs. This will ensure you can complete repairs without harm. Place a bucket underneath the drain and try to pull the food out with your hands. If this does not get all of it, you need a plumber's snake.
Run the drain snake down the sink to get any remaining food items or clogs and push them into the bucket.
Run cold water down the sink until you are sure it is free of obstructions.
Throw the limes or lemons down the sink along with some ice cubes to ensure the disposal will run smoothly. Do this about once a month to maintain the disposal.