The immediate thing that strikes me is that you're cooking two 'main' meals every day. There's also what in our house is termed 'an established pudding' every lunchtime. Why?
Do your DCs eat both these main meals? It all sounds delicious, in fact my children would love to come and live at your house!
However, you could probably make your life a lot easier, and reduce your shopping bill (making a big assumption here that this is important to you, perhaps you're lucky enough for it not to be?!?) if you simplified lunches quite a bit.
We have the same as you for breakfast. DH & the older DCs have packed lunches. Then for me and whichever DCs are at home, lunch is likely to be:
sandwiches / wraps / pittas / bagels with filling, and usually things like carrot and cucumber sticks.
big plate of hummus, pitta breads, salad things, slices of cheese or slices of ham.
pate on toast.
like you, scrambled eggs or beans on toast occasionally.
once in a while they might get pasta with tomato sauce but usually just if there's some to be used up.
Lunch puddings are always fruit & yoghurt.
We all have a proper, home-cooked main meal in the evening, along similar lines to yourselves (sausages in cider gravy, fish pie, roast chicken, curry and rice, tortellini with bacon, pesto & peas, baked potatoes, fish & veg). Pudding is then fruit again, or occasionally ice cream or a slice of cake if I'm feeling remarkably generous.
'Established puddings' tend to be reserved for Sunday lunch or if we have visitors!
I don't think you're wrong to do it your way, I think it sounds amazing... but maybe your boredom could be due to catering fatigue?