How can I effectively compost moldy food to reduce waste and create nutrient-rich soil for my garden?

To effectively compost moldy food, mix it with other organic materials like leaves and grass clippings in a compost bin or pile. Make sure the compost is aerated and moist, turning it regularly. The heat generated by the composting process will kill mold spores. After a few months, the moldy food will break down into nutrient-rich soil that can be used in your garden.