I like Wagamamas. I know people here champion Nandos but Wagas is mainly noodles, rice, meat, fish and veggies and they will hold the oil for you if you request it.
My favourite is ginger chicken udon - but with the wholewheat noodles as a subsitute. I tend to go syn free all day and allow for 2 tablespoons of oil, as that's what their recipe book states, but their recipe book states that that's for 2 people, so really I guess it's closer to 6, but I don't like to take any chances when i don't cook it myself.
It's very delicious, just try and stay away from the chocolate cake and the cheesecake desserts and opt for the frozen fruit ice lollies instead!