In a food processor, combine flours, salt, and dried thyme. Pulse 2-3 times.
Add cold butter and pulse 4-5 times until the butter forms pea-sized pieces.
Add ¼ cup iced water and pulse 2-3 more times. Transfer mixture to a large bowl.
Add another ¼ cup iced water and gently toss with hands or a spoon. Add more water, 1 tablespoon at a time, until the dough comes together.
Shape dough into a disk, wrap tightly in plastic wrap, and chill for at least 1 hour or overnight.
Assembly
Preheat the oven to 400°F.
Slice eggplant, zucchini, yellow squash, and tomatoes into ¼-inch rounds. Season with salt and pepper.
On a floured surface, roll chilled dough into a rough circle about ¼ inch thick. Transfer to a baking sheet.
Spread marinara sauce evenly over the dough, leaving a 1 ½-inch border. Sprinkle half the goat cheese over the sauce.
Arrange the vegetables in a shingled pattern starting 1 ½ inches from the outer edge, alternating between eggplant, yellow squash, zucchini, and tomato. Continue the pattern to fill the center.
Sprinkle the remaining goat cheese and fresh herbs over the vegetables.
Fold the dough border over the filling to create a rustic edge.
Beat the egg with a splash of water and brush over the dough.
Bake for 40-45 minutes or until the crust is golden brown.
Notes
🥡 STORAGE
Store leftover galette slices in an airtight container or zip-top bag in the refrigerator for up to 3 days.
♨️ REHEATING
Oven: Preheat to 350°F and warm the slices for 10-12 minutes or until heated through.
Air fryer: Reheat at 325°F for 5-6 minutes.
Skillet: Warm over medium-low heat for 4-5 minutes until the crust is crisp.
Microwave: Heat on a microwave-safe plate for 30-45 seconds (crust will soften).
❄️ FREEZING
Freeze the unbaked assembled galette. Wrap tightly in plastic wrap and foil.
Bake from frozen at 400°F for 50-55 minutes or until the crust is golden and the center is hot.
Freezing after baking is not recommended due to the moisture from the vegetables.
💡 TIPS FOR BEST RESULTS
Let chilled dough sit at room temperature for 10-15 minutes before rolling.
Don’t worry about perfect edges - galettes are meant to be rustic.
Pat sliced veggies dry to avoid excess moisture.
Use fresh herbs if possible for the best flavor.
🍳 ALTERNATE COOKING METHODS
Oven: Bake at 400°F for 40-45 minutes as directed.
Air fryer: If making mini galettes, air fry at 360°F for 12-15 minutes, checking for a golden crust.
♻️ LEFTOVERS
Serve cold, at room temp, or reheated.
Great for lunch, brunch, or served with a simple salad.