Homemade Chicken Noodle Soup

Name: Homemade Chicken Noodle Soup
Prep time: 15 min
Cook time: 20 min
Total time: 35 min
Cuisine: American
Ingredients: 2 tablespoons butter; 1 medium sweet onion (, diced small); 2 stalks celery (, diced small); 2 medium carrots (, peeled and sliced); 2 cloves garlic (, minced); 1 & 1/2 teaspoons kosher salt (, divided); 48 ounces low-sodium chicken broth; 2 teaspoons dried Italian seasoning; 1/4 teaspoon black pepper; 2 & 1/4 cups dried egg noodles; 1/2 pound (about 1 cup) shredded or chopped cooked, seasoned chicken breast