Separate the broccoli into small florets. Place them in a microwave-safe container with 1 tbsp of water, cover loosely with plastic wrap, and microwave at 600W for 2 minutes. Drain the water.

Cut the firm tofu into bite-sized pieces. Remove the veins from the peeled shrimp.

In a frying pan, combine all the seasoning ingredients (sake, salt, chicken stock powder, pepper, garlic, and water) and bring to a boil over medium heat. Add the tofu and broccoli, then bring it back to a boil. Add the shrimp and cook until they turn pink.