However, you didn't come here to learn about Fat Burger's last batch of fries, you came to know how it was established, what used to be here before, and that was a location of Zuider Zee Seafood Inn in 1970. I'm not sure what the relation was to Zuider Zee Oyster Bar & Seafood Restaurant, but I think it was renamed and this 1971 article suggests that it was to transform Zuider Zee into a more mass market fast food seafood concept. Even with newspaper resources things have been a bit spotty on the history of this spot. It seems Zuider Zee was gone by the early 1970s and replaced with "The Lighthouse Seafood" in 1975 though that also appears to have been short-lived.
In January 1977, Texasburger opened, not to be confused with any other similarly-named establishments. Within a year Texasburger folded and in January 1978, Chick'n Lick'n, a fried chicken restaurant opened, and within six months that was replaced with Parsley's Fried Chicken, another fried chicken restaurant.
Like many long-running restaurant buildings, in 1980 it became home to Texas Rental Company (ABC Rental Company by year-end), a "rent-to-own" store selling furniture, appliances, and electronics, which operated for a few years (closed in 1983) before becoming Burger Boy in 1984 (Burger Boy No. 2). Burger Boy of course would also have its time in Northgate, but it closed this location as early as 1985 and became Fat Burger No. 2 in 1988.
There it would remain for some time. Sometime around 2019 the restaurant exterior was redone, replacing their neon sign with a smaller backlit sign and re-doing the roof to be gray...though the restaurant had already had its best days behind it. Google photos shows that by 2022 the one-pound Bevo Burger was off the menu (the largest, the 2/3 pound "Freddie" was $10.99).
You can see the neon sign lit up in this Foursquare picture.