In an Instant Pot, sauté onions and peppers for about 3 minutes.
Add in minced garlic and sauté 1-2 more minutes.
Add all the remaining ingredients, except the tomato paste, buns, and salt (if using).
Stir until well combined.
Place the lid on the Instant Pot and ensure the seal knob is turned to sealing.
Set the Instant Pot for 5 minutes on High pressure and allow to naturally release when complete (about 15 minutes).
Remove the lid and stir in the tomato paste. The sloppy joe mixture should be thick.
Serve on hamburger buns.
Notes
- Adjust the siracha for spiciness, maple syrup for sweetness, and salt to heighten flavors.- If you are vegetarian or vegan, be sure to review the ingredients on the Worcestershire sauce bottle. Lord Sandy’s vegetarian Worcestershire sauce is available at our local grocery store and is what we use.- This sloppy joe sauce is also good on baked potatoes, baked fries, carrot dogs, or tortilla chips.- This recipe reheats and freezes extremely well.