Many Asian supermarkets sell frozen lumpia wrappers, which are the Filipino equivalent of eggrolls. The standard five-spice marinade is quick, but teriyaki sauce is quicker. The other inauthenticity is the need for a healthy diet. Cholesterol is mostly a richman's problem and in Third World Vietnam, grease is good. But in America, it costs nothing at all to die from overindulgence.
Substitution is needed.
My mother, wisely I think, replaces the fat with vegetable oil. In the same way, what you'll find in these recipes is a reasonable substitute for authentic Vietnamese cuisine. You won't find them in Vietnam, but they're as close to the old country as we can manage. That's how I manage, too, now that I'm on my own. Which explains why I'm now on my second 50-pound bag of rice.