Fry sliced celery and onion, add salt, pepper and garlic and continue fry and add all vegetables and fry until lightly golden then I added all to my slow cooker ( I don't have a sear one ) add the chicken noodle soup and tomato paste with just enough water to almost cover

I cooked on low for 5 hours and blended it, you could add a little cream or a dollop of sour cream but I didn't