01 - Preheat oven to 400°F. Line a baking sheet with parchment paper.
02 - Combine pear slices with maple syrup, melted butter, ground cinnamon, and sea salt in a bowl; toss to coat evenly.
03 - Arrange pear slices in a single layer on the prepared baking sheet. Roast for 20–25 minutes, turning halfway through until golden and tender. Allow to cool slightly.
04 - In a small bowl, mix Greek yogurt with honey if using to add sweetness.
05 - In four serving glasses or jars, layer roasted pears, yogurt, and granola. Repeat layers as preferred, finishing with yogurt and a few roasted pear slices on top.
06 - Sprinkle chopped toasted nuts and drizzle with additional maple syrup over each parfait.
07 - Serve immediately to maintain granola crunch, or chill for 30 minutes for a softer texture.