Lay the slices of bread on a flat surface. Use a rolling pin to flatten each slice until it's thin and even.

Spread a thin layer of peanut butter evenly over each slice of bread.

Spread a layer of jelly or jam on top of the peanut butter.

If using the optional banana, cut it lengthwise into four narrow strips and place one strip along an edge of each bread slice.

Carefully roll up each slice of bread tightly, starting from the edge with the banana (if using).

Use a sharp knife to slice each roll into 1-inch pieces, like sushi rolls.

Arrange the PB&J sushi rolls on a plate and serve immediately. Enjoy!