1-First Step: Heat the oven and get the chips started

Begin by preheating your oven to 350°F. Spray two baking sheets with olive oil so the wonton wrappers do not stick. This small step helps the chips bake evenly and makes cleanup easier later. It also sets you up for a quick, smooth cooking process.

Next, cut the 15 square wonton wrappers diagonally into triangles. Keep the pieces similar in size so they bake at the same rate. Arrange them in a single layer on the prepared baking sheets, giving each piece a little room. Crowding the pan can lead to soft spots instead of crisp chips.

Bake the wrappers for 8 minutes, then check their progress. They should start to dry out and lightly color at the edges, but they may not be fully crisp yet. This first bake gives them structure before the second round of oil and heat.

2-Second Step: Finish baking the wonton chips

Remove the trays from the oven and lightly spray the wonton triangles with olive oil again. This midway spray is one of the best tricks for getting extra crispiness. It helps the chips brown more evenly and gives them that light, crackly texture you want in a nacho base.

Return the trays to the oven for 4 to 6 more minutes. Watch them closely near the end, since thin wrappers can move from golden to too dark very quickly. You want them crisp and light golden, not burnt. If you like, sprinkle the chips with a small pinch of salt right after baking while they are still warm.

Set the baked wonton chips aside to cool. As they cool, they become even crunchier. If you are making more party snacks soon, you might also enjoy the Mexican shrimp cocktail recipe because it shares the same fresh, party-friendly vibe.

3-Third Step: Make the poke marinade

In a medium bowl, mix the minced garlic, grated ginger or ginger paste, mirin, low sodium soy sauce, lemon juice, toasted sesame oil, rice vinegar, and the white parts of the scallions. Stir well so the flavors combine evenly. This marinade is where the tuna gets its punchy, savory-sweet flavor.

Add the finely diced sushi-grade tuna to the bowl and gently fold everything together until the fish is well coated. Because the tuna is diced small, it absorbs flavor quickly and is easy to scoop onto the chips later. Keep the tuna pieces neat rather than mashing them, since you want a clean, fresh texture.

Cover the bowl and refrigerate for 10 to 15 minutes. This short chill time is enough to let the tuna soak up the marinade without losing its fresh texture. While it marinates, move on to your toppings so everything is ready for assembly.

4-Fourth Step: Prep the toppings

While the tuna sits in the fridge, dice the avocado, slice the jalapeño, chop the green parts of the scallions, and measure out the pineapple and sesame seeds. Having everything ready makes the final assembly quick and keeps the chips from softening. This is the moment where your kitchen starts to come together in a nice, easy rhythm.

If you want to keep the avocado bright, toss it gently with a little extra lemon juice or lime juice. This helps slow browning and adds another fresh layer of flavor. A few extra cilantro leaves can also be set aside now if you want a brighter finish at the end.

5-Fifth Step: Assemble the nachos

Once the tuna has finished marinating, spread the baked wonton chips across a large platter. Make sure the chips are in a single layer or slightly overlapping, but not piled too deep. A flatter arrangement makes it easier to scoop the toppings and keeps every bite balanced.

Spoon the marinated tuna over the chips, then add the pineapple, sliced jalapeño, diced avocado, sesame seeds, and green parts of the scallions. Finish with cilantro if you like a fresh herb note. The mix of colors makes the platter look lively and inviting.

Drizzle spicy mayo over the top just before serving. If desired, add lime wedges on the side so guests can squeeze on a little extra brightness. Serve immediately while the chips are still crisp. This dish is all about texture, so timing matters.