Is Eating meat immoral?

Some vegetarians don't eat meat because they think it is healthier not to do so.  No problem.  Other vegetarians don't eat meat because it is immoral.  That I believe, based on Scripture, is incorrect.  Read this passage and I'll explain why. 

Acts 10:9-13(NKJV)

The next day, as they went on their journey and drew near the city, Peter went up on the housetop to pray, about the sixth hour. 

Then he became very hungry and wanted to eat; but while they made ready, he fell into a trance 

and saw heaven opened and an object like a great sheet bound at the four corners, descending to him and let down to the earth. 

In it were all kinds of four-footed animals of the earth, wild beasts, creeping things, and birds of the air. 

And a voice came to him, “Rise, Peter; kill and eat.”

So here we have God giving Peter a vision.  In that vision God shows Peter animals of every kind.  God tells Peter to kill and eat them.

If eating meat is immoral then God just told the Israelites to do something immoral.  Since we know that God doesn't command anyone to do things that are immoral, we know that eating meat isn't immoral.

You know I like to find more than one Scripture to back up my beliefs.  I like it even better when I can find Scripture in both the Old Testament and the New Testament to back up my beliefs. 

Well here you go.  I've provided a NT reference above.  Here is an OT reference.

Exodus 16:11-12(NKJV)

And the Lord spoke to Moses, saying, 

“I have heard the complaints of the children of Israel. Speak to them, saying, ‘At twilight you shall eat meat, and in the morning you shall be filled with bread. And you shall know that I am the Lord your God.’”

Once again you have God telling His people to eat meat!  Therefore I don't believe eating meat is immoral.