Step 1

Add broth, beef and onions to the Instant Pot. In a small bowl stir together the dijon mustard, vinegar, worcestershire, salt, garlic powder, onion powder, thyme and parsley. Spoon the mixture over the beef.

Step 2

Cover the Instant Pot and secure the lid. Make sure valve is set to sealing. Set the manual/pressure cook button to 45 minutes. Allow enough time for a full natural pressure release.

Step 3

Remove the lid and place beef onto a cutting board. Add the green peppers into the Instant Pot and let them soften and par-cook in the hot liquid for about 5 minutes. Shred up the meat on the cutting board.

Step 4

Toast the buns under your oven’s broiler until brown.  Then add meat to the bottom side of each bun and then some green peppers and finally a slice of provolone cheese. Stick under the broiler for another minute, until cheese is melty. Slather the other side of each bun with mayo and mustard. Put the two sides of the bun together and eat and enjoy!

Step 5

Add broth, beef and onions to the slow cooker. In a small bowl stir together the dijon mustard, vinegar, worcestershire, salt, garlic powder, onion powder, thyme and parsley. Spoon the mixture over the beef.

Step 6

Cover the slow cooker and cook on low for 8-10 hours, or until beef is tender.

Step 7

Remove the lid and place beef onto a cutting board. Add the green peppers into the slow cooker and let them soften and par-cook in the hot liquid for about 5 minutes. Shred up the meat on the cutting board.

Step 8

Toast the buns under your oven’s broiler until brown.  Then add meat to the bottom side of each bun and then some green peppers and finally a slice of provolone cheese. Stick under the broiler for another minute, until cheese is melty. Slather the other side of each bun with mayo and mustard. Put the two sides of the bun together and eat and enjoy!