Place meat, peppers, and water in the instant pot. Cover and close pressure valve. Set to high pressure for 10 minutes.
When finished, release pressure valve and open lid. Remove meat and shred. Add your meat back to your Instant Pot with peppers. For thicker sauce, add tablespoon of corn starch.
Cut dinner bun in half. Add the bottom portion of the buns to a 8 x 8 baking pan.
Spoon meat and peppers onto the buns. Evenly distribute.
Cover meat and peppers with provolone cheese and set under the broiler on high. Should take about 3 minutes for cheese to melt.
Once cheese is melted remove and place top buns.
Butter buns and garnish with parsley
Christina's Notes
Slice against the grain: Slice the cooked steak thinly against the grain for maximum tenderness.
Toast the buns: Lightly toast the buns for added flavor and crispiness.
Trim excess fat: Remove any large chunks of fat, but leave a little for extra flavor.
Flavor: Add balsamic vinegar or worcestershire sauce to the juice to make a dipping sauce for the philly cheesesteak sandwich.