Banana Cheese Turn Over Pie

I wanted to do the puff pastry myself, but I think it's a bit troublesome. So I bought a frozen pastry puff sheet from Poon Huat for $11.00, inside has 10 sheets.

I tried banana and cheese filling as it's easy. I think it turned quite nice. My only problem is the cheese always leak out from the pie. I used the singles. I may have to use the cheese block.