Gather the ingredients so you have everything close at hand on the counter or table.
If using fresh strawberries, remove the tops and slice strawberries into small pieces. If frozen, place 3-4 cups frozen strawberries in microwave and cook to defrost.
Prepare the Graham Cracker Crust
Place a sleeve of graham crackers inside a quart freezer bag. Squeeze out the extra air and zip it closed. Crush the crackers with a rolling pin, rolling over and over it, until finely crushed to make 1 1/4 cups graham cracker crumbs.
In a medium bowl, mix graham cracker crumbs, 1/4 cup granulated sugar, and 6 tablespoons butter (melted) with a fork until combined. Press into pie plate and refrigerate.
Make the Strawberry Filling
Add the strawberries to the bowl of a blender, along with 2 tablespoons lemon juice. (You could also use a food processor, or for chunkier strawberries, mash with a potato masher.)
When the strawberries are nicely pureed, add 14 oz sweetened condensed milk and pulse until thoroughly combined.
Add Whipped Topping to the Pie
Pour the strawberry filling into the graham cracker crust, spreading it to the edges until even.
For a creamier filling, add the whipped topping to the strawberry mixture and place all of it in the graham cracker crust. You will need a large pie plate for this option.
Cover with aluminum foil or plastic wrap and freeze for about 20 minutes. Once the pie filling has set, you may top it with 8 oz frozen whipped topping, spread on with a knife, or placed in a decorating bag and piped onto the strawberry filling. Cover and return the pie to the freezer and allow to set for at least 6 hours until completely firm.
To serve, set pie out for about 10-12 minutes to allow for easier slicing. Serves 8-10.
Notes
*Unless otherwise indicated, all butter on this recipe site is salted.