Recommendations in Ft. Lauderdale?
New place to check out is "Sugar and Spice" on Oakland Park Blvd near the Intracoastal Bridge. Great food, very nice owners --- terrific early bird specials/reasonable prices. Also highly recommend Sunfish Grille, also on Oakland Park in a strip mall near Coral Ridge Shopping Center. More upscale prices & service, though.
Greek Islands (A1A & Oakland Park Blvd.) is quite good (grilled lamb chops, gyros, fried calamari). If you go with meze type dishes the price will be very reasonable.
Zona Fresca for a quick lunch spot. Fish taco is excellent.
Gran Forno , Italian Bakery with fresh homemade sandwiches & pastries, on Las Olas is also a good lunch place. (limited seating but you can grab a to-go and have a picnic on the New River- walk down SE 15th Ave. to a nice park).
Capital Grille @ the Galleria Mall has a good deal on lunch.
Some good recs on here. Some of them like Eduardo de San Angel and Samba Room might be too out there. I'd check out the menus online. Valentino's might work for your father since he'd likely be able to get good simple Italian food. Also, Hi-Life Cafe is very good and if I remember correctly, there are some simple items on the menu.