non-dairy pie-like custard-substitute dessert product

So, last night I threw away the remaining half of the eggnog pie I'd baked a few days earlier, because it was become increasingly clear that no one (including myself) was going to eat any more of it. The recipe I ended up settling on was a pretty simple one:

1 bottle (16oz) eggnog flavored coffee creamer
3 extra-large eggs
1 8-inch pastry pie shell

So, the eggnog flavor was certainly there, and it didn't suffer for lack of sugar or salt or anything like that (oh yeah and I sprinkled nutmeg on top, which you do with custard pie anyways). But it had a texture that I can only describe as "not custard pie like". Part of the problem was that, in order to get it to set up all the way, I had to cook it a lot longer then custard pie is suppose to cook, so the very topmost layer of filling was basically cooked eggs. Even peeling that off though, the rest of the pie... well it was set-up, technically, but it just tasted mushy. So, I think we all learned a valuable lesson about using something other then milk when making custard: Don't. I do still have plans for some carmel apple creamer lying around though.... I'm thinking no-bake cheesecake.