If all the grasses died what other plants could we live on?

Question

And what taste sensations would we miss?

Answer 1

tubers, legumes, fruits, veggies.........

Answer 2

i dont eat grass but i imagine that the animal kingdom would be pissed off.

Answer 3

There are still a lot of starch producing roots like potato, sweet potato, cassava, and others. I would imagine that if wheat, corn, rice, and all other cereals were not available we would be able to somehow adapt our diets to find all the nutrients needed, but there would still be mass starvation first. The scenario, obviously is a "what if" but it brings to mind the point that we relay on our grains so very heavily that it is to our benefit to maintain our climate and environment lest we loose even a small amount of production.