Yes, you can use an oven. But it’s a whole process. You have to preheat, wait, and then eat. Are you really that invested in a second-breakfast egg?
If you are, set your oven to 300°F (150°C). Wrap each cold egg in aluminum foil. Pop them on a baking sheet for 10 to 15 minutes.
This is great for a crowd. Terrible for one hangry person at 2 p.m. But hey, you do you.
Warning: Do not forget they’re in there. You will rediscover them when you smell burning albumen. Which smells like a science experiment gone wrong.