Preheat oven to 350°F. Line a 24-cup mini muffin pan with paper liners or grease with non-stick cooking spray.
In a medium bowl, combine graham cracker crumbs, sugar, and melted butter. Mix with a fork until mixture resembles wet sand.
Press about 1 tablespoon of crust mixture firmly into the bottom of each muffin cup. Bake for 5 minutes, then remove and let cool.
Beat cream cheese on medium speed until smooth and creamy, about 2-3 minutes. Gradually add sugar and beat until fully incorporated.
Add whisked eggs one at a time, mixing on low speed just until combined. Don't overmix.
Stir in lemon juice, lemon zest, and vanilla extract until blended smoothly.
Divide filling evenly among prepared crusts, filling each cup about three-quarters full.
Bake at 350°F for 16-18 minutes. Centers should still wobble slightly when gently shaken.
Cool in pan for 1 hour, then transfer to container and refrigerate for at least 4 hours or overnight.
For glaze: Whisk eggs, sugar, lemon juice, and lemon zest in saucepan. Add melted butter.
Cook over medium heat, stirring constantly, until glaze thickens and coats back of spoon, about 5-7 minutes.
Cool 15 minutes at room temperature, then refrigerate until completely cold. Top chilled cheesecakes with glaze before serving.