Non-stick pans, butter or oil, and low heat should do the trick.
As for cooking sprays, such as Pam, Calphalon and other manufacturers now recommend against them because they tend to leave a gummy residue on the non-stick surfaces of pots and pans. Here's the advice from Calphalon's site
I like to use spray oils for lowfat cooking. Can I use them in my Calphalon cookware?
For cooking, the answer is NO, we advise against using spray oils in our cookware for several reasons. For baking with our Professional Nonstick Bakeware, the answer is YES, you can use spray oils with no trouble.
Spray oil instructions usually direct you to apply the spray to a cold pan, then add your food. This is because spray oils contain a lot of water. If you spray it into a hot pan, the water boils away immediately and leaves you with a gummy residue. (Calphalon cookware calls for preheating the pan before adding any oils to make sure you get the cooking performance you want.)
The nonstick material used for Calphalon Professional Nonstick Bakeware was developed especially for the sticking problems unique to baked goods. Things like pie drippings, jam, cookie runovers, and other baked-on disasters are no problem for this nonstick. When tested, we found that spray oils were no match for it. Any residue can be cleaned away easily with Soft Scrub® and hot water.