Season both sides of the pork with 1-2 teaspoons cajun seasoning, seasoning salt or salt and pepper. Searing the roast first is optional. If doing so, sear 2-3 minutes per side in a large skillet over high heat.
To a Crockpot, whisk together cream of chicken with herbs soup, broth, poultry seasoning, garlic powder and 1-1 1/2 teaspoons cajun seasoning, seasoning salt or salt and pepper. Once combined transfer the pork into the mixture, coating both sides. Cover and cook on low for 8-9 hours or high 5-6.
Once the pork easily shreds apart with a fork, carefully transfer the meat to a plate or platter. Break the pork into large chunks and remove any excess fat or bone.
If desired, skim the fat from the top of the Crockpot juices. To thicken the broth/juices into a gravy, first remove any solid bits. Add cream cheese in small chunks to the Crockpot. Allow it to sit for about 5 minutes to soften. Whisk until well combined. In a small bowl whisk together water or milk and the cornstarch. Stir this mixture into the Crockpot. Once combined, transfer the pork back into the Crockpot and cook on high for 5-10 minutes.
Serve as is or over light bread, mashed potatoes, noodles or rice.