Grandma's Chicken Noodle Soup

1 pound boneless, skinless chicken thighs
1 tablespoon olive oil
2 stalks celery, with leaves, sliced
2 large carrots, chopped
1 onion, chopped
1 14 ounce can diced tomatoes, undrained
1 14 ounce can ready to serve chicken broth
1 teaspoon dried thyme leaves
1 9 ounce package frozen green peas
1 cup frozen homestyle egg noodles

Cook chicken in olive oil in heavy skillet, stirring frequently, for 5 minutes. Mix chicken and remaining ingredients except peas and noodles in a slow cooker.

Cover and cook on low for 6 1/2 to 7 hours or until chicken is thoroughly cooked and no longer pink in center.

Stir in peas and noodles and cook 10 minutes longer until noodles are tender.

Serves 8.