This one is easy and faster than most other pot roast recipes mainly because the roast is cut into three smaller pieces. Why cook one large roast, have it take forever, and cook unevenly, only to shred it later? #ruthlessefficiency, people!
In a blender, combine the diced onions, tomato paste, Worcestershire sauce, rosemary, thyme, salt, pepper, and broth. Blend until smooth. Pour the sauce over the roast.
Secure the lid on the pot. Close the pressure-release valve. Select MANUAL and set the pot at HIGH pressure for 15 minutes. At the end of the cooking time, use a quick release to depressurize.
Open the lid, and stir in the carrots, pearl onions, potatoes, celery, and mushrooms. Secure the lid on the pot. Close the pressure-release valve. Select MANUAL and set the pot at HIGH pressure for 4 minutes. At the end of the cooking time, allow the pot to sit undisturbed for 10 minutes, then release any remaining pressure.
Carefully transfer the roast to a bowl and coarsely shred it, then transfer onto a serving platter. Arrange the vegetables around the meat.
Serve the pot liquid as a sauce on the side.
Notes
Per Serving Calories: 250 Total Fat: 5g Saturated Fat: 2g Sodium: 420mg Carbohydrates: 15g Fiber: 3g Sugars: 5g Protein: 34g