The secret ingredients to this are the spices. Salt, mainly. Pepper and fresh thyme also. You can easily use fresh vegetables instead of frozen, but I'm lazy... Pour half the chicken stock and the celery/onion into a slow cooker on low. Add garlic powder, salt and pepper and 1/3 of the thyme. 3 chicken breasts go in the oven. Wrapped in foil at 350 for 45 mins. It doesn't matter if it's a bit undercooked, you'll add it to the pot. It just needs to be cooked enough to pull.

Cut the chicken breasts in 3 pieces and pull them apart so it looks shredded. Add them to the pot. Add the bag of frozen peas/carrot/green beans. Pour the rest of the chicken stock into the pot. Add more salt/pepper/garlic powder and another third of the thyme. Soak the dry tortellini in hot water. Mix the crock pot regularly.

Leave the crock for about 2 hours. Now add the tortellini, also more salt/pepper/garlic powder. Leave for another hour. Add the rest of the thyme, Stir and it's done.