If you're preparing several foods that get "done" at different times, you often can successfully hold most hot foods for about 15 to 20 minutes in a preheated oven set to 200 to 250°F. For longer than this, check frequently with a food thermometer, to assure the food is remaining at a temperatures of 140°F or above. If necessary, adjust the oven's temperature to a higher setting. Keeping foods hot for extended periods (more than a couple of hours) may reduce the quality of the food. Examples of ways to keep foods warm include
Keep Your Dishes Warm During the Winter
Food Safety Links
cooking tip
How To Keep Food Warm After Cooking
Eating for warmth: Making your meals work for you on cold days - CBS Pittsburgh
How to Cook for a Man: 14 Steps (with Pictures) - wikiHow Life
Keeping Foods Warm While Other Foods Get Done
The Best Way to Keep Takeout Food Warm Until You're Ready to Eat
Backpacking Food Ideas & Meal Planning
Four Steps to Food Safety
How to Keep Food Warm in the Oven
How to keep food hot when you're on the go
How to Keep Food Hot When Traveling