Trim crust from bread. Cut bread slice into quarters, making squares. Diagonally cut each square in to halves, making triangles. Arrange bread triangles in a shallow baking dish or pie plate. Micro-cook, uncovered, on 100% power for 1 to 1 1/2 minutes or till the bread is dry. Remove the bread from the microwave oven. In a custard cup micro-cook butter or margarine, uncovered, on 100% power for 40 to 50 seconds or till melted. Drizzle over bread triangles. Sprinkle with grated parmesan cheese.

From Better Homes & Gardens "Microwave Cooking for One or Two".