Impromptu curry party

We were planning a Chicken Dopiaza for tonight but now we are 4 instead of 2 I am looking for a way to stretch our meal and to include less garlic and onions. So, it’s Butter Chicken from the two fillets, plus some aloo saag from the freezer, and an addition of Bombay Potatoes. The cupboard didn’t support anything more exciting, but it will do I am sure. Maybe I can include a prawn dish…