I often cook a chub of sausage then add egg to it to make breakfast burritos. In this case I had 1/2lb of sausage cooked (refrigerated leftovers). I mixed up 6 eggs and poured over the crumbled sausage...

120Wh to cook, although it took a couple tries. Another 65Wh to heat the tortillas on the mini-hotplate.

I don't think the energy savings is worth the trouble.