Thaw or chop 3 cups of strawberries. Add 3/4 cup of sugar and mash together. Let sit for 30 minutes. Place the strawberry/sugar mixture into a pot and bring to a simmer. Make a simple roux of 3 tbs. all-purpose flour and 3 tbs butter in a seperate pan over medium heat. Stir the roux until slightly yellow in color (blonde). Quickly transfer the roux to the strawberries and stir until thickened and smooth. Stir in a bit of cream to thin it a little if need be. Add 1/4 tsp cinnamon and pour into a ready made pie shell. Bake, using the pie shell directions until the crust is golden brown.
There are better strawberry pies, but they require a home made crust, and are a bit trickier to get the filling to the right thickness. This was the easiest pie I could think of, except maybe by replacing the roux with a cornstarch slurry to thicken.
Seeeeeeya; Chief Longwind of the North