Yes, I have pulled the crockpot out of the closet and blown off the dust in order to bring you a crockpot recipe in time for Easter brunch. Other sites call this a crockpot brunch casserole. I call it a crustless quiche or a fritata done in a slow cooker.
My particular slow cooker runs hot on the Low setting, especially when I use the smallest sized crock (I have three crocks that work on it). The first time I made this I woke up in the middle of the night and could smell it and just knew that it was done. I crawled out of bed, stumbled half asleep into the kitchen and turned it to Warm - or so I thought. Turns out I turned it to High and ended up with a charcoal briquette in the crock. Not good odor-wise or money-wise. My second attempt was much better when I used a technique I've seen mentioned in many other crockpot recipes - I folded aluminum foil several times to create a buffer between the bottom of my crock and the heating element. Much better results this time. But I will say that after trying this way versus baking a quiche in the oven, I prefer the oven.
You will definitely be better off if you have a slow cooker with a timer and varying temperatures. This calls for cooking for about 8 hours and so I needed to wait until at least 10 p.m. before I put it on. That's my one complaint on my cooker - no timer.