There are a few differences between spring rolls and egg rolls. The first difference is the wrappers: spring rolls are wrapped in thin flour wrappers or rice wrappers, while egg rolls are wrapped in a thicker wrapper that’s been dipped in egg for richness. The second main difference is the filling: spring rolls are usually filled with vegetables, while egg rolls are filled with a combination of meat and vegetables. Note that I have used the method described in this post to cook both frozen egg rolls and frozen spring rolls and it works well for both.