Divide the tuna evenly among the nori sheets, spreading it toward one edge for easy rolling.
Top with julienned carrot, cucumber, and avocado slices.
Carefully roll each nori sheet, starting from the edge with the fillings, into a tight wrap.
Serve immediately and enjoy!
Notes
Storage: Refrigerate all ingredients (except nori sheets) in separate containers for up to 3 days. Assemble just before eating for the best texture.
Canned Tuna: One can of tuna equals approximately 165 grams (5.8 ounces), drained.
Add More Flavor: Include a sprinkle of sesame seeds or a drizzle of tamari sauce before rolling.