Arrange Crescent Rolls On A 13-In. Round Pizza Pan, Forming A Ring With Wide Ends Overlapping And Pointed Ends Facing The Outer Edge Of Pan. In A Skillet, Saute Mushrooms And Onion In Butter For 8 Minutes Or Until Juices Are Absorbed. Add Remaining Ingredients; Mix Well. Spoon Over Wide Ends Of Rolls. Fold Points Of Rolls Over Filling And Tuck Under Wide Ends At Center (Filling With Be Visible). Bake At 350 Degrees F For 20-25 Minutes Or Until Golden Brown.