The oats/porridge even with no sugar has the potential to send your BG spiking. It's still carb and turns to sugar in your gut.
The Greek yoghurt sounds good, you can even load it with raspberries - best fruit on LCHF.
Diagnosed 13/4/16: T2, no meds, HbA1c 53, FBG 12.6, Trigs 3.6, HDL .75, LDL 4.0, BP 169/95, 13st 8lbs, waist 34" (2012 - 17st 7lbs, w 42").
2/6/16: FBG AV 4.6, Trigs 1.5, HDL 2.0, LDL 3.0, BP 120/72, 11st 11lbs, waist 30" (2012 - 17st 7lbs, w 42").
Regime: 20g LCHF, run 1 mile daily, weekly fasting.
4/6/16: Best BP 112/64....yeah!!