I too cannot eat the carbs that you do, I especially can't eat them in the morning, but my body also reacts differently to potatoes than it does to wheat.
If I eat wheat, even a small slice of bread, it raises my BG dramatically but I can eat a small jacket potatoes without drastic effects.
Wheat also bloats me, and I am also veggie so can't say how the meat thing works for loosing weight. But since I have stopped eating the wheat based carbs (and I love bread and pasta too) My Bg and my weight have dropped.
I don't own any scales so can't say how much weight I have lost, but many of my clothes are now too big to wear as I have dropped 2 dress sizes.
I have the eggs for breakfast but without the toast, I will eat baked beans for lunch (not breakfast) not on toast but with quorn sausages, and lots of substantial home made soups. When I find a meal not filling enough without the bread I add a handful of grated cheese which makes it more substantial and filling for longer.
When I want a snack I eat nuts, fruit while healthy is something else that does my BG no favours, though I can eat a small banana, if I am not having any other significant carbs.
I use quorn slices or cheese slices instead of bread - for instance I put egg mayo on the quorn or cheese and pickle and eat it like sandwiches. Bulked out by salad with a vinagrette-type dressing.