Preparation Preheat oven to 350°F with rack in middle. Butter a 2-quart shallow ceramic or glass baking dish. Spread bread crumbs in a 4-sided sheet pan and toast in oven until dried and pale golden, about 15 minutes. Cool crumbs. Increase oven temperature to 450°F. Thickly slice tomatoes and arrange, overlapping, in baking dish. Season with 1/2 teaspoon salt and 1/4 teaspoon pepper and sprinkle with 1 tablespoon thyme. Melt butter in a large heavy skillet over medium heat, then cook nuts and crumbs, stirring frequently, until golden, 4 to 5 minutes. Season with salt and pepper. Spoon evenly over tomatoes. Bake until tomatoes are bubbling and crumbs are browned, 15 to 25 minutes. Cool to warm or room temperature and sprinkle with remaining 1/2 tablespoon thyme. Cooks' note:Bread crumbs and nuts can be toasted (but not cooked in butter) 1 day ahead and kept together in an airtight container at room temperature.
Preparation Preheat oven to 350°F with rack in middle. Butter a 2-quart shallow ceramic or glass baking dish. Spread bread crumbs in a 4-sided sheet pan and toast in oven until dried and pale golden, about 15 minutes. Cool crumbs. Increase oven temperature to 450°F. Thickly slice tomatoes and arrange, overlapping, in baking dish. Season with 1/2 teaspoon salt and 1/4 teaspoon pepper and sprinkle with 1 tablespoon thyme. Melt butter in a large heavy skillet over medium heat, then cook nuts and crumbs, stirring frequently, until golden, 4 to 5 minutes. Season with salt and pepper. Spoon evenly over tomatoes. Bake until tomatoes are bubbling and crumbs are browned, 15 to 25 minutes. Cool to warm or room temperature and sprinkle with remaining 1/2 tablespoon thyme. Cooks' note:Bread crumbs and nuts can be toasted (but not cooked in butter) 1 day ahead and kept together in an airtight container at room temperature.