Vegetable Tian


  • 2 tablespoons olive oil
  • 1 cup panko bread crumbs
  • 2 cups finely chopped red onion
  • 3 garlic cloves, minced
  • 1/2 teaspoon crushed red pepper flakes
  • 2 tablespoons dry red wine
  • 1/2 small butternut squash (about 3/4 pound)
  • 2 large russet potatoes
  • 1 large zucchini
  • 2 large tomatoes
  • 2 tablespoons fresh lemon juice
  • 1-1/2 teaspoons herbes de Provence
  • 1 teaspoon sea salt or Himalayan pink salt
  • 1 teaspoon coarsely ground pepper
  • 1 cup shredded Gruyere cheese
  • 1/2 cup panko bread crumbs
  • 2 tablespoons clarified butter or ghee, melted


  • Preheat oven to 400º. Lightly grease a 10-in. cast iron skillet; sprinkle with 1 cup panko breadcrumbs. In another skillet, cook onions in olive oil over medium heat until tender, 4-5 minutes. Add garlic and red pepper flakes; cook 1 minute. Stir in red wine; cook until mixture is almost dry, 1-2 minutes. Spread onion mixture in the bottom of the prepared cast iron pan; set aside.
  • With a mandoline or sharp knife, cut the squash, potatoes, zucchini and tomatoes into ¼-inch-thick slices. On a flat surface, layer vegetables into stacks, starting with a potato slice, tomato, squash and zucchini. Arrange stacks on their sides around outside edge of prepared skillet in a circular pattern. Make a second, alternating circle in the center. Drizzle lemon juice over vegetables and sprinkle with herbes de Provence, salt and pepper. Cover with foil; bake until vegetables are almost tender, 1 hour. Meanwhile, in a small bowl, combine cheese, ½ cup panko and clarified butter.
  • Remove foil; sprinkle with topping. Bake until cheese is melted and starting to brown, about 15 minutes. Remove and let stand at least 10 minutes before serving.
Nutrition Facts

1 piece: 287 calories, 12g fat (6g saturated fat), 26mg cholesterol, 387mg sodium, 36g carbohydrate (6g sugars, 6g fiber), 9g protein.