Start with a Walmart pre made pie crust. Yes you can make your own, but it’s a pain and makes a big mess. I have done both and can’t taste a difference in them anyways.
Get a large can of cherry pie filling.
I added about a cup and a half of blueberries from my bushes, but they were frozen from last year so frozen ones from the store will be just as good.
And that’s about it. Put the bottom crust in a glass dish, pour in the cherries, sprinkle the blueberries on top of the cherries (defrosted of course), put on the top crust, make four slits and bake. It was truly the quickest and best pie I’ve ever made.