Preparation Preheat oven to 350°F. Coat 15x10x2-inch oval baking dish with 1 tablespoon oil. Heat 5 tablespoons oil in heavy large skillet over medium-high heat. Add onion and sauté until translucent, about 5 minutes. Add breadcrumbs and thyme and stir until breadcrumbs are lightly toasted, about 3 minutes. Transfer to large bowl. Mix in tomatoes, cheese, eggs, garlic, salt and pepper. Fill zucchini blossoms with breadcrumb mixture, using about 2 teaspoons for small blossoms and 1 tablespoon for large blossoms (be careful not to tear blossoms). Sprinkle any remaining breadcrumb mixture over baking dish. Place zucchini atop breadcrumbs in dish. Drizzle remaining 2 tablespoons oil over. (Can be made 8 hours ahead. Cover; chill.) Bake until zucchini are tender, about 30 minutes. Serve with lemon wedges.
Preparation Preheat oven to 350°F. Coat 15x10x2-inch oval baking dish with 1 tablespoon oil. Heat 5 tablespoons oil in heavy large skillet over medium-high heat. Add onion and sauté until translucent, about 5 minutes. Add breadcrumbs and thyme and stir until breadcrumbs are lightly toasted, about 3 minutes. Transfer to large bowl. Mix in tomatoes, cheese, eggs, garlic, salt and pepper. Fill zucchini blossoms with breadcrumb mixture, using about 2 teaspoons for small blossoms and 1 tablespoon for large blossoms (be careful not to tear blossoms). Sprinkle any remaining breadcrumb mixture over baking dish. Place zucchini atop breadcrumbs in dish. Drizzle remaining 2 tablespoons oil over. (Can be made 8 hours ahead. Cover; chill.) Bake until zucchini are tender, about 30 minutes. Serve with lemon wedges.