Little quiches for breakfast (or whenever)

I got this idea the other day about making things for breakfast (which, though I might do a shake, I don't EAT because I'm not usually very hungry).  I know now this is not a brainstorm of my own since others have said they've found recipes online.  But here's how I fixed mine (realizing you can add or subtract anything you want to them).

I minced up some onion, mushroom, grape tomatoes, garlic, then chopped baby spinach, hand-stirred them up in a bowl, then I got out some muffin tins, sprayed them with olive oil, and put some of the veggie mixture into the bottom.  I then put a small dollop of sour cream in each one, filled with egg beaters, topped with shredded parmesan cheese, and put in a 350 oven for 15 minutes, then turned it down to 300 for another 15 minutes.

Whoa, nellie, they're GOOD!

I might one day try to make them more like a quiche (which has a crust) and use something like a philo dough or something to line the pan with.