Yes. Main ingredients: two slices of toast, 1 slice of cheese, 1 slice of ham

Accessory ingredients: appropriate amount of cucumber slices, 2 blueberries

1. Cut off the four sides of the square bag and set aside.

2. Preheat the oven to 150 degrees, put the square buns in, and bake for about 5 minutes until they are slightly charred.

3. Cut the ham slices in half.

4. After stacking the square buns together, cut them in half diagonally.

5. Cut the cheese slices into 4 small pieces.

6. Take a small half piece of square bun, put half a piece of ham slices and cheese slices on top, then cover with half a piece, top with cucumber slices and blueberries to complete.

7. Finished product.