I’m vegetarian and accidentally ate meat. How do I cleanse myself?

I had lasagna for dinner tonight and it was hours later that I was told it had beef in it. I thought it tasted a bit funny although it was only a small amount. I feel so upset and sick at myself now I don’t know what to do. I don’t want to make myself throw up but I want it out of my system as soon as possible
I’m vegetarian and accidentally ate meat. How do I cleanse myself?
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