Cafe Polonez is great. Love their schnitzels and beet salad. It is a Polish joint, but I remember their placky was specified Hungarian. Experts please chime in.
Gourmet Schnitzel House was recommended to me once. I haven't been, but from their website, it looks like some authentic good eats.
I would avoid both Hungary Thai and Country Style Hungarian though. Quality had declined substantially over the years.
195 Roncesvalles Ave
Toronto, ON M6R 2L5
Gourmet Schnitzel House
2286 Kingston Road
Scarborough, ON M1N 1T6