Caramelized Onion, Green Bean, and Cherry Tomato Tian Recipe

Use the freshest vegetables you can find. This slightly sweet vegetable dish takes its name from the French term (pronounced tee-AHN) for mixed vegetables prepared gratin-style.


  • 5 cups (1-inch) cut green beans (about 1 pound)
  • Cooking spray
  • 3 cups thinly sliced onion
  • 6 garlic cloves, minced
  • 2 teaspoons sugar
  • 1/2 teaspoon salt
  • 1/4 teaspoon black pepper
  • 2 tablespoons balsamic vinegar
  • 1 teaspoon dried basil
  • 1/2 teaspoon dried oregano
  • 4 cups cherry tomatoes, halved
  • 1/4 cup (1 ounce) grated fresh Parmesan cheese


Preheat oven to 400°. Cook beans in boiling water 3 minutes. Drain and rinse under cold water; set aside.

Heat a nonstick skillet coated with cooking spray over medium-high heat. Add onion and next 4 ingredients (onion through pepper); saute 8 minutes or until lightly browned, stirring frequently. Stir in vinegar, basil, and oregano; cook 2 minutes. Remove from heat.

Arrange beans in an 11 x 7-inch baking dish coated with cooking spray. Top with onion mixture. Arrange tomatoes on top of onion mixture, and sprinkle with cheese. Bake at 400° for 35 minutes or until the cheese is lightly browned.