Step 1Preheat oven to 200°C. Prepare soba noodles according to packet instructions. Drain and run under cold water to cool. Add a few drops of sesame oil and stir through noodles. Set aside.
Step 2Line a baking dish with baking paper. Arrange chicken breasts on top. Combine half the miso paste with hot water to make a thick sauce. Spread this mixture over chicken breasts. Place in oven and cook for 15 minutes or until cooked through and juices run clear. When cooked, set aside and keep warm.
Step 3Meanwhile, steam, boil or microwave broccoli and beans for 2 minutes, or until just tender. Refresh under cold water and add to soba noodles, along with carrot ribbons and sliced ginger.
Step 4Combine remaining miso paste, sesame oil and a little hot water in a small bowl. Gently stir dressing through the noodles.
Step 5Slice each chicken breast into 3 pieces. Serve on top of noodle salad and garnish with sliced shallots, if desired.