Sorry to hear things aren't going well, Oblomov. But keep it in perspective - 1274 calories are still way less than average. I hope today is better! We've all had those days.
Higgidy do a crustless quiche you can get at Ocado (and maybe elsewhere?). Not cheap cheap but often on special, and absolutely delicious. It's a spinach, feta, and red pepper one. Fairly low carb too. I think it's only that flavour that comes as crustless though, and there is still wheat in it, just not very much. It doesn't have a pastry bottom, though, I'm pretty sure, so maybe it would work for you?
squid there's also this recipe for vietnamese lamb cups that are basically some mince, some spice, some peanuts and other spices, scooped and eaten in lettuce leaves. It's absolutely delicious and very fast and kid-friendly; everyone else can have it with rice to bulk it out.
And yes, one thing I hate about this is that I'm having to plan and think about food so much, esp as so many fast options are off limits now. Between the planning and the recording food eaten on MFP, it's just way more prep than I expected.
On the other hand, for me, having to plan a packed lunch and snacks for every work day is definitely a money saver, as is going (mostly) off the wine, so I guess it has benefits beyond weight loss/health improvement, even if I have to plan more than I used to.
bear happy running!