Why did my kashi cinnamon harvest cereal taste like gr?

okay so I asked that question just to have a question up there, but okay so I used to be vegetarian and im now im going vegan. I went to whole foods with my mom and I got some stuff. I tried two cereals -- one was KASHI cinnamon harvest --it tasted like I was eating hay or gr. I threw the bowl straight in the garbage and then I tried my organic peanut er pows cereal.. It was like this puff ball shape and it was just disgusting. I threw it away..those cereals were terrible, so Im thinking that I should just stick to my regular cereals like frosted cheerios, frosted flakes, apple jacks, ---because it seems like i cant find no tasty healthy cereals..does anybody else have any other VEGAN cereals that have a sweet taste..a really sweet taste?