2.
Melt butter in medium skillet on medium-high heat. Add ham, onions and chiles; cook 8 min. or onions are crisp-tender, stirring frequently.
3.
Spread half the stuffing mix onto bottom of 9-inch square baking dish sprayed with cooking spray; cover with layers of half each of the ham mixture and cheese. Repeat layers. Whisk eggs and milk until blended; pour over ingredients in dish.
4.
Bake 50 min. or until knife inserted in center comes out clean. Let stand 10 min. before cutting to serve.