Freeze the tomatoes whole until completely frozen, preferably overnight.
Cook the noodles according to the package directions. Drain and rinse under cold water until completely chilled.
Add the frozen tomatoes, ½ cup cold water, soy sauce, rice vinegar, garlic, and honey to a blender. Blend until smooth.
Add the cold noodles to a bowl and pour the blended tomato sauce over them. Toss until the noodles are evenly coated.
Top with sesame oil, green onions, sesame seeds, and egg.