Could God microwave a burrito so hot the he himself could not eat it?
Absolutely not. It would explode and mess up His Divine Microwave before it got to infinite heat. He's probably not even paying attention, like when Eve went for that fruit. Those beans will bake hard onto the platter. He make us clean it up, like we have to clean up all his messes.
If he could, I'd appreciate him cleaning out my microwave.
It would require a divine microwave, but yes. Such a divine microwave would also be able to pop all the popcorn, without burning any.