If you're looking for a restaurant in Oerlikon then I can recommend Rolli's, its a steak house, and if you just have a steak each with a glass of wine, you should manage in CHF 100 (for the two of you). If that's too expensive then I can recommend Mamma Mia (also in Oerlikon), its our favorite Italian restaurant, and yes its cosy and romantic. The prices start at I think around CHF 18 for a pizza and for pasta around CHF 25. Hope this helps.