Season tuna on both sides with salt and pepper. In a small skillet, heat a little bit of olive oil of a medium heat. Sear tuna on all sides, remove from heat and let set. Cut into thin slices.
In a large salad bowl toss together napa cabbage through cashews.
In a blender, combine rice vinegar through canola oil. Blend until smooth.
Toss salad with dressing. Season to taste with salt and pepper. Place seared tuna on top. Sprinkle with sesame seeds and crunchy rice noodles.
Recipe by Cooking for Keeps at https://www.cookingforkeeps.com/ahi-tuna-salad/