Place the chicken and sweet potato at the bottom of a slow cooker (mine is 7 quarts).
Combine the almond milk, coconut milk, soy sauce, peanut butter, curry paste, ginger, fish sauce, and coconut sugar in a large microwave-safe measuring cup. Microwave for 30 seconds to 1 minute until the peanut butter is smooth and melted.
Pour the peanut mixture over the chicken. Cover the Crock Pot and cook until the potatoes and chicken are tender, about 3 to 4 hours on low.
Once cooked, whisk the tapioca starch and 8 teaspoons of the Crock Pot liquid together in a medium bowl until smooth. While whisking, stir the mixture back into the Crock Pot until well-mixed. If it's easier to whisk the chicken, remove it with a slotted spoon first.
Add the red pepper, cauliflower, broccoli, and chicken (if you removed it). Cover and cook for an additional hour until the sauce is thick and the vegetables are tender.
Once cooked, shred the chicken and stir it into the sauce.
Serve over rice of choice, along with cilantro, green onions, extra peanuts, and soy sauce or sriracha, if desired! Enjoy!