Here's what we're been using up:
My daughters made frosted sugar cookies just before Christmas. We finished the cookies but had a bunch of colored frosting leftover. Tired of not having some of my glass dishes and measuring cups, I decided to bake some scratch cupcakes and use up some of this frosting.
I mixed the red, yellow and white to make a salmon color and used the chocolate frosting as is. I didn't have enough cupcakes to use the green frosting. I may freeze that to use for St. Patrick's Day or Easter. We've been enjoying the cupcakes, I have more of my glass dishes ready for use, and we didn't allow the frosting to linger long enough to grow mold or spoil.
We de-decked the halls Monday evening. I used more of the treats as part of our snack-y dinner just before putting decorations away. I had some pot stickers in the freezer leftover from New Year's Eve, as well as peppermint bark, holiday cookies, and spiced nuts to add to the buffet. I used a can of biscuit dough that had passed it's sell-by date to make broccoli, chicken, cheese mini pocket sandwiches. A large bag of frozen broccoli was nearly empty, leaving a large pile (close to a half-cup) of broccoli bits at the bottom of the bag. Those bits (plus a couple of chopped florets from a new bag) provided the broccoli for the sandwiches. I try to use all of what's in a bag of frozen vegetables, even the small bits that don't make a forkful on their own. The "cocktail" sausages are 2 all-beef hotdogs cut into quarters, leftover from last summer's cook-outs (kept in the freezer, of course). We had about 2 cups of cola at the bottom of the 2-liter bottle, leftover from our tree decorating party in December. So that went on the table, too. To round out the buffet, I added some carrot sticks, orange quarters, and pepperoni-pineapple mini kabobs.
What's left? Besides the green frosting, we still have some Christmas cookies, spiced nuts, Christmas candy, a half-dozen pot stickers, and about 1 cup of cola that I'll be repurposing in the coming weeks.
So, this has been my effort to waste not, so that we will want not.