Even with Super Pricey Eggs, though, this is not an expensive way to eat. For my current seven-lunch batch, the total cost is:
Eggs: $2.50 (I actually used grocery store eggs for these, but let's price it out by highest-quality)
Ham: $2.50 (two thickish slices)
Milk: Three and a half cups of milk, organic milk is about $3 for a half-gallon, let's say $1.50
Bread: A dollar. This used one half loaf of Fancy Bread which had accidentally gone stale before even being opened; it was $2.19. If we'd planned ahead for this express purpose, we could have gotten day-old bread for half price.
Scallion: fifty cents.
So, fourteen dollars for ingredients. Divide by seven, that's $2 per serving for a delicious, organic, portable, microwaveable lunch. Y'all, you can't go to damn McDonald's for that. And it would be fairly trivial to cut the ingredients cost in half if you forewent the Sooper Hippie Gourmet angle; this would be nearly as good with swiss or cheddar instead of gruyere, and I used grocery store eggs as it is. For those of you with produce boxes, this can often be a good use for some of the leafy veggies that can be otherwise mystifying.
Bake for about 45 minutes in a 350 degree oven. Microwave for 45 seconds to reheat.