My ds (aged 4) has a limited diet and I'm desperate to broaden his horizons a bit. He"ll eat toast, marmite, rice crispies, fish fingers, potato waffles, fromage frais, apples, bananas, tinned spaghetti, and lots of milk and that's just about it, every day. He's happy, healthy and growing but I just wish he would try new things(he refuses point blank.) Does anyone have any advice? Has the cold turkey approach worked for anyone?