Preheat the oven to 400 degrees Fahrenheit and line a baking sheet with parchment paper.
Combine 2 cups crushed pretzels, ½ cup chopped pecans, ¾ cup melted salted butter, and ¾ cup packed brown sugar in a medium bowl, then spread evenly on the prepared baking sheet. Bake for 7-8 minutes, until bubbling and browned (but not burned!) Set aside to cool.
Meanwhile, add 8 ounces softened cream cheese, ⅓ cup granulated sugar, and 1 teaspoon vanilla extract to a large bowl and beat with a hand mixer until smooth, scraping down the sides and bottom of the bowl as needed.
Fold 1 (8-ounce) container thawed whipped topping into the cream cheese mixture just until combined.
Crush the cooled pretzels into bite-sized pieces.
Just before serving, fold the crushed pretzels and 2 cups diced fresh strawberries into the cream cheese mixture.
Notes
Storage Recommendations
Make-Ahead: You can prep the components ahead of time and fold everything together right before serving so the pretzels stay crunchy.
Fridge: Store leftovers in an airtight container in the refrigerator for up to 3 days. Keep in mind the pretzels will soften over time.
Freezer: Not recommended, as the texture of the cream mixture and strawberries will change after thawing.