Trim the ends of the Moroccan green beans and cut them diagonally into 2cm pieces. Place them in a microwave-safe container, add 1 tbsp of water, cover loosely with plastic wrap, and microwave at 600W for 1.5 minutes. Drain the water.

Place the chicken breast in a microwave-safe container, pour sake over it, cover loosely with plastic wrap, and microwave at 600W for 2 minutes. Let it cool slightly while still covered.