Go simple.

Chicken, potato halves and onion halves in pig fat in oven. Melt fat but only make it hot enough to be semi-liquid. You should be able to keep finger in it. Pour it in deeper metal pan. Cover chicken and potatoes in whatever spices you prefer put it in pan with onion, cover with aluminum foil and slow cook it in oven. Then when it's done blast it with heat for few minutes just to get some crust.

Serve it with shopska salad, baked peppers (not bell peppers, red narrower cone like ones) peeled and preserved in oil with garlic, and hot home made bread.

But if you are not afraid of more complexity but still dead easy go with stuffed bell peppers which is served, again with salad, sour milk and bread or sarma which is same stuffing but rolled into sour cabbage or vine leaves.

Also since it's from balkan go with something like cream veal soup or just simple chicken soup with vegetables (carrots, parsnip, celery) with semolina dumplings for the first meal.

And then there is an simple option of balkan grill. Pljeskavica (basically a bit different burger), especially ones with bacon, aged cheese and ham mixed in, ćevapi, grilled smoked pork ribs...