Bring 8 cups of water to a boil. Keep the flame medium-high. Throw in vegetables that need blanching (peas, broccoli) and immediately fish them out. When the water returns to a boil again, throw in noodles, wait until the water returns to a vigorous boil, and throw in 1-1/2 cups of cold water. When it returns to a vigorous boil again, turn off the heat and let it sit for about 2 minutes before draining. The total noodle boiling time is about 6-7 minutes, depending on your preference and how much buckwheat v wheat flours the noodle contains. After you drain the noodles, rinse quickly under a cold water.
Cook pre-soaked dried shiitake mushroom
(You can follow the same procedure in the soba noodle salad). To soak dried shiitake, briefly wash them just to remove dirt, place them in a glass jar just large enough to fit all the pieces, and add a tsp of sugar. Pour lukewarm water over shiitake enough to cover all the pieces, close the lid to push down all the pieces in the liquid, and let it stand for about 30 minutes, until all the pieces soften and double in size. (NOTE: I often soak them in a batch and keep the unused pieces in a fridge, which can last up to 2-3 weeks.)
Slice softened shiitake in thin pieces and cook for about 10 minutes in a small sauce pan with 2-3 tablespoons of pre-soak water + 1/2 tsp of soy sauce and let them cool in the pan. After fishing out shiitake to a plate, add, if any, remaining liquid to the dressing.
Make Tahini dressing
Prepare aromatics - mince green onion stalks (mostly white/pale green parts only), press or mince garlic cloves, and grate ginger root.
Mix aromatics, and about 3/4 of Tahini, soy sauce, maple syrup, vinegar, a dash of red chili flakes, sesame seeds, and sesame oil. Taste and make adjustments.
Cook shrimps
Sprinkle slat and paprika powder (or whatever spice mix you like) over shrimps, mix, and let stand about 10 min. I usually use the turmeric spice mix because it goes with many things, especially sea foods.
Lightly coat shrimp pieces with sesame oil and grill or cook in air fryer, for about 8 minutes.
Assemble everything together
Set aside a few sprigs of mint/cilantro to sprinkle at the end.
Place all the vegetables, herbs, and shiitake mushrooms in a large bowl. Pour over about 1/2 of the dressing, thoroughly coat all the ingredients by gently caressing.
Add soba, and pour about 1/2 of the remaining dressing. Mix everything together, taste, and add more dressing as you please.
Add shrimp and mix everything together. After plating, sprinkle the herb pieces you set aside.