This from the Family Handyman:
To remove that greasy build-up that collects on kitchen cabinets, heat a damp microfiber cloth in the microwave for 20 to 30 seconds (this will loosen baked on dirt in the microwave as well!). Put on a pair of gloves, spray your wood or metal cabinets wtih an all purpose cleaner containing orange oil, like Orange Glo. Wipe off the cleaner with the warm cloth. Rinse, wring out and reheat the cloth. When finished, remove excess oil with a cool, damp cloth.