However, it depends on the energy efficiency of your oven and what else you're heating at the time. For example, if you have the oven on to roast vegetables, then use the hot oven to heat other components of the dish, rather than the microwave. The less appliances you can use the better.

Whenever using a microwave, the experts at Eat Sustainably encourage people to avoid using plastic (hard or soft plastics) and use ceramic or glass instead. Interested in learning more? Read here.