My favorite recipe is homemade Tortellini Prosciutto, but it's on the complicated side, not to mention a little pricey to make very often.
My favorite recipe to take to get-togethers is "mac and cheese corn stuff." I have no idea what you would call it, but it's tasty and really easy! I get in trouble if I come to a family/friend pot luck without it.
Ingredients:
1 can of corn
1 can of creamed corn
1/2 stick of butter (or more)
1/4 block of Velveeta
1 cup of elbow mac
You cut the butter and Velveeta into cubes, put everything in a cake pan, cover it and bake for 45 minutes at 350. Halfway through you need to stir it, and uncover it the last 15 minutes. I usually do a double batch and it fills one of the 9x13 glass pans pretty well. That recipe would probably only be enough for one family.