Press crust into an 8x8 pan; bake at 325°F for 10 mins.
Simmer strawberries, sugar, and lemon juice until thick; blend and cool.
Beat cream cheese and sugar; add eggs, sour cream, vanilla, and flour.
Pour over crust; swirl strawberry sauce on top.
Bake 30–35 mins until edges are set.
Cool 1 hour at room temp, then chill 2 hours in fridge.
Notes
Use room temperature ingredients for a smooth, lump-free filling.Wipe the knife with a warm towel between cuts for professional-looking squares.Straining the strawberry sauce is optional but makes for a smoother swirl.Do not overmix the batter after adding eggs to prevent air bubbles and cracks.