@ehBeth,
I made a couple of batches of egg rolls and frozen them, one batched baked, and on lightly sauteed (better). Yes, they have the cover roll, but I like that. They do, um, get less puffy in the freezer, primarily from the mung bean threads (cellophane noodles) thinning. Still tasty though. I've used slivered bamboo shoots, once a little ham, and cooked shrimp too, along with mung bean threads, cabbage, and whatever else temps me in the fridge, maybe scallion slivers.