Natl. Museum to Quiapo Church and places nearby to eat

Hi! Me and my partner ay nagpla-plan na mag visit sa Natl. Museum then Quiapo Church. Paano po pumunta sa Quiapo Church from Natl. Museum? And if may masasarap na kainan malapit (cafes, restau, resto). It's her bday kasi. Thank you so much in advance!