Chicken pot pie pasta

Pasta and macaroni Italian cuisine

Salt and pepper ¾ pound penne or other short tubular pasta ⅓ pound green beans, trimmed and cut into 1-inch pieces 3 tablespoons unsalted butter 1 small yellow onion, minced 1 stalk celery, thinly sliced 2 carrots, diced medium ¼ cup all-purpose flour 2 cups chicken broth 2 cups diced cooked chicken