Mix together onion powder, garlic powder, dried dill, and kosher salt in a small bowl.

Wash and dice the potatoes and carrots, and place them in the bottom of the slow cooker. Pour a splash of chicken stock over them and sprinkle half of the ranch seasoning on top.

Place the chicken on top of the veggies and season with the remaining ranch seasoning and a pinch of salt.

Cover and cook on high for 3 hours or low for 6 hours until chicken is cooked through.

Whisk together Greek yogurt, avocado mayo, vinegar, and remaining seasoning in a bowl for the dressing.

Remove chicken and slice it. Serve with veggies and drizzle creamy ranch dressing over top.

Garnish with chopped parsley or chives before serving.