If you have an ice cream maker, you could drain it, throw it in there and voila - frozen yogurt.

Martha Stewart has a really yummy lemon spice cake, it calls for sour cream (I think) but I never have that in my fridge, but always have honey greek yogurt for my girls...it works great in the cake! I do not make the sugar glaze for the top though, it would probably be to sweet then, but plain as it is, it is a perfect tea cake!

It would probably make an amazing marinade for chicken.

There are scone recipes that use yogurt, and I've made them using greek honey yogurt before to great success!

My husband loves having cereal mixed with yogurt instead of milk. Mixing this with an unsweetened cereal might make a nice breakfast.

get a container of plain yogurt, mix the two together, and then put back in the containers. Now you have two yogurts that aren't too sweet.

spread on toast or stir into oatmeal or blend into a smoothy (and just omit your usual sweetener).

Since cold tempers flavors, I agree with other commenters and suggest frozen yogurt.

"Too sweet" is a concept I honestly never get... Sigh.

i make what i call "breakfast pudding" with it - combine with plain oats, water/milk to cut down on the sweetness - and some additional non-sweetened cereal too if necessary:

http://theactorsdiet.wordpress.com/2010/07/13/breakfast-pudding/

+1 Frozen Yogurt

What great suggestions.

You could also make these whole grain bran muffins and reduce the honey a little:
http://www.farmgirlfare.com/2007/02/back-into-bran-muffins.html

Or you could make this easy orange yogurt loaf cake and reduce the sugar a little:
http://www.farmgirlfare.com/2008/06/strawberries-in-garden-orange-yogurt.html

I'd say maybe mix it in with some tart lemon juice and toss it in the freezer for a sherbet-like treat.

For something savory, the honey yogurt may work well in this:
http://www.saveur.com/article/Recipes/Peppers-Stuffed-with-Feta-Piperies-Gemistes-Me-Feta

I made it and found it way too salty on its own and had to add honey to tame it.

I'm with Faith -- mix in plain yogurt until it's only lightly sweetened

Look up a Birchermuesli recipe and don't add any sugar. Birchermuesli calls for both honey and sugar, and if you already have that sweetness, you can go full steam ahead!

FOLD IT INTO WHIPPED CREAM. DO IT. TRUST ME.

You know, I've been guilty of using sweet vanilla yogurt in Indian recipes when plain is calling for... I haven't noticed much overall difference (though I have a fairly inconsistent hand when it come to spices, so that might be part of the problem). But you could possibly try something like that.

I'm with JulieEK -- I just started a marinade last night for Chicken Tikka Masala, and the first ingredient of the marinade is 1c yogurt. I bet the sweetness of the honey would blend really well with the savory and spice.

You can make a banana bread recipe that includes plain yogurt (like the one in Cook's Illustrated Best Recipe book) and cut down on the added sugar. I've done this before and it works well.

I wouild mix it with equal parts of plain Greek yogurt, that will cut the sweetness in half.