Contrary to popular belief, it is entirely possible to make vegetarian sushi. That’s because — also contrary to popular belief — the word sushi refers to the rice preparation technique, not the other ingredients. Pieces of raw tuna or salmon artfully arranged on a plate are delicious, but they are not sushi. They are sashimi. If you don’t have rice flavored with rice vinegar, you don’t have sushi.
With that in mind, here’s how to make a fantastic lunch.
Ingredients
1 1/2 c. sushi rice, cooked
2 tbsp. rice vinegar
2 tsp. sugar
3 nori sheets, toasted (available from the health-food store; do yourself a favor and buy the pre-toasted kind so you don’t have to toast it yourself)
Mild-flavored vegetables such as avocado, cucumber or carrots
Soy sauce
Pickled ginger
Wasabi
You’ll also need a sushi mat, available for about $5 at most health-food stores and Asian groceries. (Aluminum foil will work in a pinch, but I don’t recommend it, especially if you’re not used to working with sushi.)
Stir the sugar and vinegar into the rice and refrigerate it for an hour or so. If you’re not great at making rice, get yourself an automatic rice cooker; they cost about $20 at most big retailers and will save you a lot of time and effort.
After the rice cools, cut your vegetables into thin strips.
Lay a toasted nori sheet on the sushi mat. Place about a third of the rice on the end of the sheet closest to you and use the back of a spoon to spread it to about 1/2 inch thick.

Make an indentation in the middle of the rice and lay vegetable strips in the indentation.

Starting with the side closest to you, roll the nori sheet up around the filling as tightly as possible, rolling the mat with it as needed to keep everything together.

Unroll the mat. Dip your fingers in a bowl of water and use them to moisten the loose edge of the nori, smoothing it down against the roll.

Using a very sharp knife, cut the roll into slices.
Arrange the slices on a plate. Serve with pickled ginger, wasabi and soy sauce. (Pickled ginger and wasabi both should be available from most grocery stores.)
Makes three rolls.