<human>:  What is the best way to heat up a frozen burrito without a microwave?
<bot>: The best way to heat up a frozen burrito without a microwave is to wrap it in aluminum foil and place it in a preheated oven set to 400°F (200°C) and heat it for 10-15 minutes. You can also heat it on the stove over low-medium heat in a lightly oiled skillet, flipping the burrito occasionally. Another option is to steam it in a pan on the stovetop over medium-high heat with a couple tablespoons of water and a tight-fitting lid.