Go buy a raclette.
Meats, cheese, mushrooms, peppers and cook at the table.
Or how about
Starter of a selection of ham(s) other rooked meats, nive bread and a few olives.
Main, lemon + spice chicken with new potatoes and a mushroom sauce
Cheesecake - just because there is cheesecake thread with loads of recipes - maybe not if lactose intolerant, but you could probably do something similar with yofu.
For the chicken, get chicken thighs with the skin on, 2 per person (3 if they are big eaters).
Put therm in as shallow pyrex dish / or baking sheet.
Make a rub of
salt (or garlic salt)
black pepper
paprika
rub into the skin then sprinkle with lemon juice, put in the oven for 30-40 mins.
do simple new potatoes and veg in the same pan.
I do a mushroom sauce by fring finely sliced mushroom in butter, then adding cream cheese or creme fraiche but you could use passata or stock, maybe ass a teaspoon of whole grain mustard.