Line rimmed baking sheet with parchment or silicone mat.
Mix Greek yogurt, 3 tablespoons honey, vanilla, and salt until smooth.
Pour yogurt onto prepared baking sheet.
Spread into even ¼ inch layer all the way to edges.
Wash and slice strawberries.
Scatter strawberries evenly over yogurt. Press gently.
Drizzle remaining 2 tablespoons honey in zigzag pattern.
Sprinkle with granola or chia seeds if using.
Place in freezer on flat surface.
Freeze at least 3 hours until completely solid.
Let sit 2 to 3 minutes at room temperature before breaking.
Break into irregular pieces by hand or cut with knife.
Serve immediately or store in freezer bag.
Keep frozen. Eat straight from freezer.