1. Microwave butter and garlic salt in glass dish for about 30 seconds, on HIGH, or until melted.
2. Preheat microwave browning grill for 5 minutes on HIGH.
3. Brush each side of bread with butter mixture. Arrange slices, cut-side-down, on preheated grill.
4. Microwave for 1 1/2 minutes on HIGH. Turn toast over and continue cooking for 1 1/2 to 2 minutes, on HIGH, or until crisp.