What was found
ODOR ONLY HAPPENED IN COCKPIT, NO ODOR IN CABIN. ONCE IN CRUISE FOR 15-20 MINS & ONCE ON DESCENT FOR 15-20 MINUTES..ODOR WENT AWAY BOTH TIMES SDR REPORTABLE DISCREPANCY TROUBLESHOOTED AIR CONDITIONING SYSTEM IN REF WITH FIM TASK 21-00-01/301 STEP 3 PROCEDURE 1 ( C1A) HAVE TO REMOVED AND EXAMINE LEFT HEPA RECIRCULATION FAN FILTER. FOUND CODE FISH AND TOASTED BREAD IN OVEN CAUSING WARM WOOD ODOR. CLEANED OUT OVEN AND R&R LEFT HEPA RECIRCULATION FAN FILTER IAW AMM 21-25-02/401 . PERFORMED HIGH POWER BURN OUT AND NO SMELL WAS NOTED. OPS CHECK GOOD. PERFORMED SMOKE/ODOR IN FLIGHT DECK AND CABIN CONDITIONAL INSPECT IAW AMM AMM 05-51-58-910-801-C1.