1. Preheat the grill in your oven.
2. Cut each roll in half and place onto a large baking tray.
3. Top each of the halves with a slice of cheese.

For smiley-face pizza rolls:

1. Cut the pineapple rings into halves for the smiles and the ham into triangles for the eyes.

For the palm tree pizza rolls:

1. Cut the pineapple rings into equal-sized pieces for the branches and the
2. ham into tree trunk shapes.
3. Decorate as seen in the picture.
4. Season with salt and pepper.
5. Grill until the cheese has melted and the rolls are just beginning to brown.
6. Serve immediately.