Green Grape & Blueberry Pie

Having recently moved to Costa Rica, I have limited utensils to work with in my kitchen. For baking, I'm using my Black and Decker toaster oven, with the mini pans associated with a toaster oven. And being a little remote with no stores close, I try not to waste anything, That being said, I had green grapes that had to be eaten or used. I thought pie! I'd never seen a grape pie before, so I just started to put this easy recipe together. The blueberries were an after thought, I was about done cooking the grapes, thought the sauce was a little thin, and remembered I had frozen blueberries, threw them in and...viola! Grape & blueberry pie!! I made a really easy veg. oil pie crust, it turned out so flakey and delicious.