In the early years, , Lent involved frozen fish sticks, frozen shrimp and good stuff like that. My father would have preferred a full Lent of pickled herring but that was out.
However, due to the cost of fish and shrimp, my mother would serve six weeks if tuna noodle casserole. It really wasn't bad as much as it was complete monotony that we would have the same thing EVERY Friday.
When I got married, Mrs. Jlawrence01 thought that she would continue the TNC Fridays during Lent. I barred her from the kitchen until Easter. Seriously. This time of year, I always make sure that she is NOT smuggling in canned tuna.
As for frozen fish filets, I will bread my own. It is really not that difficult. The only good frozen product that I have ever had was the Olmsted brand from Ontario that was available in Detroit.
Locally, here in Arizona, eating fish and chips at most of the Catholic parishes is truly penance. Grossly overcooked mediocre frozen fish is the norm. And it is always prefaced by, "this is the best fried fish you will ever eat." The snowbirds from Michigan, Minnesota, and Wisconsin can generally be identified by the cringes after the first bite. It is one step below federal lunch program fish sandwiches.
In some Catholic parishes, like the Cathedral of St Thomas Aquinas in Reno, they have banned the fish fry in favor of a soup pot luck with homemade breads.