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french vegetable tian recipe baked in a rustic clay dish with fresh herbs

French Vegetable Tian

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Prep Time 20 minutes
Cook Time 1 hour
Servings: 6
Course: Main Course, Side Dish
Cuisine: Mediterranean
Calories: 145
Ingredients Method Notes

Ingredients
  

  • 2 medium zucchinis sliced into 1/4 inch rounds
  • 2 Japanese eggplants sliced into 1/4 inch rounds
  • 4-5 Roma tomatoes sliced into 1/4 inch rounds
  • 1 large yellow onion thinly sliced
  • 3 cloves garlic minced
  • 1/4 cup extra virgin olive oil
  • 1 tbsp fresh thyme leaves
  • 1 tsp dried oregano
  • Salt and black pepper to taste
  • 1/2 cup grated Parmesan cheese optional

Method
 

  1. Preheat oven to 375°F (190°C).
  2. Sauté: In a skillet, cook the onions and garlic in 1 tablespoon of olive oil until soft. Spread this mixture across the bottom of a 9x13 inch baking dish.
  3. Arrange: Layer the zucchini, eggplant, and tomato slices vertically in the dish, alternating them to create a colorful pattern.
  4. Season: Drizzle the remaining olive oil over the top. Sprinkle with thyme, oregano, salt, and pepper.
  5. Bake: Cover with foil and bake for 30 minutes.
  6. Brown: Remove foil, sprinkle with Parmesan (if using), and bake for another 30–40 minutes until golden and tender.
  7. Rest: Let the dish sit for 10 minutes before serving to allow the juices to settle.

Notes

  • Uniform Slicing: Use a mandoline or a very sharp knife to keep slices exactly 1/4-inch thick. This ensures every vegetable reaches peak tenderness at the same time.
  • Manage Moisture: If your tomatoes are very juicy, give them a quick pat with a paper towel after slicing to prevent the bottom of the dish from becoming soggy.
  • The "Bed" Technique: Always sauté your onions and garlic before layering the other vegetables on top. Raw onions will not soften sufficiently under the shingled vegetables.
  • Packing Density: Pack the slices snugly but do not force them. They will shrink slightly as they roast, allowing the olive oil and herbs to penetrate between the layers.
  • Cheese Timing: If adding Parmesan or Gruyère, wait until the final 15 minutes of baking to prevent the cheese from burning while the vegetables finish softening.
  • Resting Period: Let the dish sit for 10 minutes post-oven. This allows the vegetable juices to thicken into a flavorful sauce rather than running all over the plate.