A proper French(*)-style couscous. That's a big bowl of couscous grains, a big pot of mildly spiced vegetable stew (carrots, turnips, swedes, sweet potatoes, canned tomatoes, chick peas) with plenty of liquid because the couscous soaks it up, and a platter of various meats: grilled sausages (preferably merguez/chorizo), a whole chicken chopped into 10-12 pieces (which you can cook in the vegetable stew), meat balls, maybe some small lamb chops. Serve chili jam (harissa) or any chili sauce separately for those who like it to stir into the juice of the stew. There are good recipes all over the web.
The only last-minute stuff is the couscous itself (which takes 5 minutes) and grilling the meat balls and sausages. It makes for a good (dinner) party dish because you can plonk everything in the middle of the table and people can help themselves (and skip over any items that they prefer not to eat).
(*) Obviously it's a Maghreb dish, but I'm hedging a bit because I have only ever had it in restaurants in France, and that's the version I know. Maybe that's the French equivalent of chicken tikka masala, which is not Indian at all, and Moroccan couscous is actually quite different. 🤷♂️