"Instant ramen" refers to a type of noodle soup that is made quickly and easily. It comes in a package with pre-cooked noodles and a flavored broth that can be prepared by adding hot water. Full definition
Cook a packet of instant ramen noodles (a bundle of soba or other dried noodles work, too) according to the package instructions. (bonappetit.com)
I won't judge if you choose to add crushed instant ramen noodles, either. (foodformyfamily.com)
I'll often end up making this cold noodle dish because I always have packages of instant ramen in my pantry for whenever I need a fix (which is often). (bonappetit.com)