Set pressure cooker to saute for 15 minutes. Brown ground beef and onion. Season with the garlic, salt, and pepper.
Turn OFF the pressure cooker. Stir in the taco seasoning, picante sauce, tomatoes, and rice.
Measure 2½ cups of water and pour into the beef mixture, stir.
Place the top on the pressure cooker and set the valve to sealing. Select 'pressure cook' and set the time for 6 minutes.
When pressure cooking has finished, allow the pressure cooker to naturally release for 6 minutes. After 6 minutes, flip the valve to venting until the pin drops.
After all pressure has been released, remove the lid. Stir in the black beans and corn. Gently place the lid on top of the pressure cooker, you don't have to lock it, for 4-5 minutes to allow beans and corn to warm.
To assemble your burrito bowl, scoop the burrito mixture into a bowl and top with your favorite fixings!