Oven at 400 Take small pan with "lip" on it - line with foil for easy cleanup.  Spray with Mazzola pure olive oil cooking spray (or your favorite but olive oil is good for you . . . ) Layer walnuts in bottom of pan.  Spray top side of walnuts with a bit of the olive oil spray.  Sprinkle on Cajun seasoning and lightly coat walnuts.  Cook for 10 to 12 minutes until lightly browned and a bit crispy (shaking pan during cooking so they all get covered with the seasoning.) Walnuts are fairly low carb (like 2 per 1/4 cup) and have Omega 3 and can lower cholesterol.   They are great while still warm too.  I often eat with a piece of cheese so it is a little more filling. I still want to try it with different seasonings - could be good with cinnamon or your favorite spice.