Rehydrate 5.3 oz/150 g yuba sheets according to the instructions on the package (or soak in boiling water until flexible).
While the yuba is rehydrating, prepare the sauce by adding 12 oz/340 g silken tofu, 1/3 cup nutritional yeast, 1/4 cup cold water, 1/4 cup chopped sun-dried tomatoes, 3/4 teaspoon salt, 1/8 teaspoon black pepper, and 1/2 of 1 small garlic clove to a blender.
Blend until smooth and creamy.
When the yuba has finished rehydrating, drain and discard the soaking liquid.
Transfer the yuba, one sheet at a time, to a large cutting board.
Lay the yuba sheet flat, then roll it up tightly lengthwise into a log.
Slice widthwise into approximately 1/3-inch strips to form noodles. Repeat with the rest of the yuba sheets.
Transfer the noodles to a large pan on the stove set to medium heat.
Add the sauce to the pan and toss with the noodles until evenly coated. Cook until heated through.
Garnish with finely chopped fresh herbs such as basil, parsley, or chives before serving, if desired.