Ingredients

2 tablespoons olive oil , 1 small red onion , 3 zucchini , 2 plum tomatoes , 3 cloves garlic -- minced , 1/4 teaspoon salt and freshly ground pepper , 1 tablespoon fresh thyme -- minced , 3 ounces Gruyere cheese -- grated

Method

1. Preheat oven to 350 degrees F. Lightly oil an 8-inch round baking dish. Slice onion into rounds. Slice zucchini and tomatoes about 1/2 inch thick. , 2. In a large skillet over medium heat, place 1 tablespoon of the oil, and saute onion and garlic until translucent (5 to 8 minutes). , 3. Place zucchini slices vertically along the edge of the baking dish (cut edge against side of dish). Place the tomato slices against the zucchini, then some of the sauteed onion-garlic mixture against the tomato slices so vegetables stand up around perimeter of baking dish. Repeat with zucchini, tomato, and onion-garlic mixture to form alternating rings. Place remaining vegetables in center. Sprinkle with salt, pepper, thyme, and cheese. , 4. Bake for 25 minutes. Serve warm or at room temperature.