L.T.
I'm not big on trying new things either, but I like my kids to. You know....do as I say, not as I do. From time to time I will serve something we don't often have. I'll announce that "I've never eaten this before". Then after my first bite I'll make a big deal about how good it is and how glad I am that I tried it and we'll have to have that again. That often entices them to try it as well.
Sometimes my kids will call a food by another name. For example, they call sausage "hot dogs". When they do that I don't correct them at first. After they have eaten, I tell them the proper name of the food. In this example I might tell them it is a special kind of hot dog called sausage. I don't know how much longer I'll get away with these tricks as my oldest (4 yrs old) is getting wise, but it has worked so far.