Targa Green is a lovely little cafe off the main region of Roman Road. I think the owners are Moroccan, cook great Middle Eastern and speak French to each other. They are very friendly and encouraging on the weekend buffets. £13 is a moderate price for a brunch for just food but the variety and quality makes it worthwhile. And the matcha latte is good too!
There's soup, roasted vegetables, fattoush, strong hummus, vine leaves, tabbouleh and delicious lamb koftes (which are cold but they microwave upon request).
Perfect for a lazy weekend brunch when you have a lot of time to think about life.