I love cooking salmon like this. I found this on a website and have never looked back. Make a rub for your salmon with stuff like brown sugar, spices, teriyaki, etc.....rub this all over the salmon really good. Take the salmon and make a tin foil "boat", making sure its sealed.
Here is the kicker, take the salmon boats and put in a crockpot. Dont put anything in the crockpot...just the boats, thats it. Turn on high for 2-3hrs, depending on the size of your salmon.
Best salmon i have ever eaten and no cleanup.