Pre packaged creme fraiche in quiche I've seen creme fraiche recipes for quiche and I have some store bought creme fraiche on hand that was bought for me a few days ago.   My concern is that it's not real creme fraiche, it's half way towards butter - it's perfectly fine, but it tastes like it's closer to butter than real creme fraiche, which I imagine helps with the shelf-life.

A friend brought over a tiny tin of caviar and 8 oz of creme from the store (pre-packaged) so I have about 6 oz of the stuff and I don't know what to do with it.  It doesn't work on toast as butter, I tried it.  It's just wrong.

Will I ruin my quiche if I make it with this stuff?   Let me state that I'm not a low calorie quiche person, I use heavy cream and that's a proper decadent quiche in my opinion and if I have it once every 2-4 weeks, I don't worry about the calories.    

The idea of a butter flavored quiche sounds kinda gross, so I'm leaning towards not doing it, or experimenting with just 1 egg and 4 oz of the creme - I think I'll try that.

Any advice is welcome on the store bought creme fraiche quiche idea or other things to do with the stuff that don't include more caviar, cause that's not in the budget.  

I mean no ill will toward the product and I think Vermont Creamery is a good company, but I don't think this will make a good quiche and there's numerous creme fraice quiche recipes available.
Creme Fraiche is more comparable to sour cream than it is to heavy cream, and it sounds like what you have is if anything even further from cream. You could certainly make a tasty quiche with it, but it would probably require the addition of additional liquid, and there's a chance it won't turn out well. If you're OK with risks and experimentation, go for it!
Otherwise, I'd suggest using it for something you'd usually use yogurt, sour cream, or cream cheese for.