Slice cucumbers lengthwise with a vegetable peeler to get thin strips Drain tuna if necessary and mix with mayo, sriracha, garlic powder, salt and pepper.

Mixture should be slightly moist but not excessively wet.

Place cucumber strips on prep surface and neatly spread tuna mixture tightly along leaving about 1 inch at the end of the strip.

Place avocado pieces at end of cucumber strip on top of tuna and tightly roll For Sauce: Mix mayo and sriracha and drizzle over cucumber rolls