Prep the pan. Heat the oven to 350°F (175°C). Line an 8x8-inch pan with parchment, leaving overhang for easy lifting.
Make the crust. Pulse pistachios in a food processor until finely chopped, not paste.
Add graham crumbs, sugar, and salt. Pulse to combine, then mix in melted butter until the mixture holds when pressed.
Press and pre-bake. Press the crust firmly into the pan. Bake for 8–10 minutes until fragrant and lightly set.
Cool while you make the filling.
Beat the filling. In a bowl, beat cream cheese and sugar until smooth, about 2 minutes. Mix in sour cream, vanilla, lemon zest, and salt. Add eggs one at a time, mixing on low until just combined. Do not overmix.
Pour and bake. Spread the filling over the crust.
Tap the pan to remove air bubbles. Bake 20–24 minutes until the edges are set and the center has a slight wobble.
Cool and chill. Cool completely on a rack, then chill at least 3 hours (overnight is best) for clean slices.
Roast the figs. While the bars chill, toss fig halves with honey, lemon juice, cinnamon, and a pinch of sea salt. Arrange cut-side up on a lined sheet and roast at 400°F (205°C) for 12–15 minutes until glossy and tender.
Assemble. Lift the chilled cheesecake from the pan.
Cut into bars. Spoon warm or room-temp figs over the top, drizzle with honey, and sprinkle with chopped pistachios.