In a 6- to 8-quart electric pressure cooker*, combine beef, pork, chicken, and stock. Cover and lock lid. Select manual feature. Pressure-cook on high for 20 minutes. Naturally release pressure for 10 minutes. Vent to release remaining pressure. Uncover and remove chicken. Shred chicken and set aside, discarding bones.
Add potatoes, carrot, onion, bell pepper, beans, tomato sauce, tomatoes, Worcestershire, brown sugar, salt, black pepper, red pepper, and bay leaf; stir well to combine. Cover and lock lid. Select manual feature. Pressure-cook on high for 15 minutes.
Quickly release pressure and uncover. Discard bay leaf. Add shredded chicken and stir well to combine. Serve with biscuits.
Notes
*We used an Instant Pot®.
Recipe by Taste of the South at https://tasteofthesouthmagazine.com/burgoo/