Q: Is it okay to feed my two year old instant noodles?
A: If by "okay" you mean is it safe to feed your baby old instant noodles, then the answer is yes.
If by "okay" you are asking if it is nutritious to feed your two year old instant noodles, then the answer is maybe. Instant noodles alone have very little nutritional content other than carbohydrates, fat (the noodles are often fried in the drying process), and salt (that is basically what the flavor pouch is all about). If you use the instant noodles as a base and maybe add in some frozen vegetables or boiled meat to the broth then it may be okay for you to feed it to your baby once in awhile if it is something they enjoy eating.
If by "okay" you are wondering if it is fine to make instant noodles a part of their DAILY diet, then the answer is definitely no.