Baked Eggs with Tomatoes, Feta Cheese, Spinach, and Mushrooms (and Avocado Toast!)

It's cold here in Dallas these days, and has been for some time. It's so cold, in fact, that my car has trouble starting more days than not; at least lately. Hopefully that doesn't mean it's time for a new one (ain't nobody got time for that!) Anyway, this baked egg breakfast seemed like the perfect way to warm up on a cozy Saturday morning. I'm sure you'll agree!