Years ago, and I mean YEARS, cheap cafes used to offer a thing called "chop toad" (yes, sounds horrific, doesn't it?) in which sausages were replaced by lamb chops. Maybe that would suit your guest. Also, a couple of vegetarian dishes would remove the "I only eat certain types of meat" problem. They don't have to be fancy or difficult - salad with a beautiful cheese or an omelette (in my case, that's just eggs beaten up with salt & pepper, cooked in a frying pan). Or boil some pasta & serve it with a pasta sauce (chilled or bottled). To be honest, it would be very rude of her to complain about when you're feeding her for 6 days. My advice is to try and feel better about yourself - it's good plain food and, unless she has a special dietary requirement, you're doing your best to treat her sensitively. I've been a vegetarian for 40 years and my mother-in-law never truly "got" it, so she served me egg & chips every time I had a meal there. She was also a "good plain cook" and was doing the best she could, so it never occurred to me to whinge about it. You're not at fault here. You sound like a nice lady, so just let the days run along and remind yourself it'll soon be over! Best of luck.